
4.2
8 of 64 Best Attractions in Cheyenne

Of the 24 engines of this type that were made for Union Pacific, only eight survive and two of the eight reside in Cheyenne. This one is located in an attractive small city park, the other is in UP's remaining round house near the downtown depot. We've seen other Big Boys (Omaha, Green Bay, WI), but this one is situated in the nicest location, close to a small lagoon and a children's playground. It would truly be grand if one of the remaining Big Boys could be restored to operating condition. What a sight that would be!

If you are into historic trains this is certainly a "must see". Old Number 4004 is one of only a handful of Big Boy steam locomotives still in existance. In its day it was one of the largest engines in the world, specifically designed to haul heavy loads over the mountins. In retirement it has become a pigeon perch in a local park of a city that was so important to the Western railroads. While it is sad to see it parked, it hints at the promise of what is to come when the local Union Pacific steam shop finishes restoring its sister locomotive and returns No. 4014 to active use on the rails in a couple years.

This was not that easy to find with my GPS. It was a short drive out of the way but we had folks in the vehicle that wanted to see it. Drove by, Saw it, didn't get out of the car.

This locomotive is enormous and you can get within 5 feet of it. the scale and engineering of it was fascinating.

A must to see. It is located in one of the city parks. There is no access to go on board. Well set for exterior picture taking.

Worth a quick stop on the side of the road in town.

The other Bib Boy (4014) is currently being restored by Union Pacific in their Cheyenne Steam shop. It is expected to be operational by mid 2019 giving Cheyenne 25% of the remaining Big Boys!

A great stop if you are in the area. Cheyenne has lots to offer and is a great place along to the way.

People are always stopping by this train and taking pictures. It is located in a park. It has easy and free access to an important part of train history.

I love the old Big Boy. As a small boy, I would climb on it before the fence was put around it. It is impressive in size and majesty.

Great to see any get photos of this iconic beast. It;s huge and the grandsons will be so jealous that we've seen this famous engine. So big and so accessible.

Our family is a fan of trains, and we enjoyed visiting this unique site. What a piece of history! This engine is huge, and it is located in a nice park area. Take a picnic and enjoy the day outside!

I read about this giant among giants of a steam locomotive when I was a kid. I always wanted to see an example of a steam engine this big and powerful, so while in Cheyenne returning from the solar eclipse, my family and I took half an hour to visit.
The Big Boy doesn't disappoint. It is truly gigantic and carries the aura of bygone days when steam traction hauled the freight that made America. But the exhibit isn't perfect.
The locomotive really needs some new paintwork and a bit of TLC. It would be nice if the necessary fencing around it were something nicer than chain link, and if there were a way to take pictures without having to shoot through the fencing.
It would likely grow annoying, I know, but it would be nice to hear a recording of this monster in action.

America is the most awesome nation on the planet. We've made our fair share of mistakes, but we've done our best to get better as we go. The Big Boy Steam Engine is a part of what it took to move America forward during a time when forward was our only option. HUGE steam engine...one of the last of its kind. Glad to have seen it!

The engine is sitting in Holliday Park, which is a great park for families. The engine has a sign about its history and is a site to be seen. Without standing next to it you cannot image the size of the engine. A real piece of rail history.

I moved to Cheyenne shortly after Big Boy was placed in Holiday Park. When I was younger I didn't have much appreciation for it, just seemed like one more thing in the park.
Today while back in Cheyenne for a few days, I stopped in the park for another look at ole 4004. This is an impressive piece of machinery. Over 440,000 miles on the rails during its run on the Union Pacific. It doesn't take long to check it out, but it's definitely worth it.

This was amazing to see, very impressive. When I was planning my trip to Cheyenne, I saw this come up here on TA. So, I made it a point to stop by the park and see this bad boy !!!

A nice quiet little park with a lot to offer including Big Boy, the largest of the large. Another is currently in Cheyenne railyards being restored. Lots of different places to walk and spend a quiet afternoon.

For the uninitiated, this would be just a walk by. For the train buff, it is thoroughly enjoyable.
Wish one could get on board.

The train is in a park. There's not much else to say about it.

If you are a steam engine fan, don't miss this. We made a quick visit on our way out of town. You could spend as long as you want reading the information and taking it all in- its massive.

Took a nice walk while traveling to Cheyenne to visit grandson and family. beautiful big trees, lots of shade,cute squirrels and the "Big Boy" for those who enjoy seeing steam engines. Nice place for a picnic and not far off the interstate.

Located in a park and close to the main road, has a wife fence around it. its okay to photograph, 10 mins then move on

Hard to believe how big it was. Was nice to see and read the history if this train. The park was clean and we'll maintain. Trying to find parking was a little challenging.

Five minute stop on the trolley type route. The driver gives a short informative talk about it. Worth getting out to stand beside to see how big it truly is. Lovely park setting.

This was a chance to get close to one of the 11 or so remaining Big Boy steam locomotives. The Big Boy was the largest steam railroad steam engine ever built. This big boy is in a nice park, that is also good for picnics etc.

It's a bit sad that this beautiful, powerful locomotive is just on static display. I understand there's another one in the steam house being refurbished to run on the rails again. This one had just gotten a new coat of paint (could still smell it) and looked absolutely stunning
Don't miss the Cheyenne Train Depot museum a mile or so away to learn more history about this beast.
Nice place to picnic before or after viewing this guy.

I was surprised to find the Big Boy Steam Engine, An Icon of it's day.. Had just been stuck in a park, left open to all the elements. When you consider it's history. Why is it not sat outside the Wyoming State Museum ?, Preferably covered. From what we saw of Cheyenne,it is a town worth a visit.
But the City Hall does not appear to want to attract tourism ?. Other than for the locals. IE: Rodeos Etc. shame.

Big Boy 4004 is a very interesting piece of Americana history. Very cool to see. I hope the citizens of Cheyenne realize that and put a little work into maintaining/restoring it.

Before leaving for Denver after spending part of the day with my dad in Cheyenne, we stopped in Holiday Park and I got out to se the Big Boy engine 4004. This is my second of the Big Boys as I saw one in Kennefick Park in Omaha. Another big boy engine 4014 is getting restored in Cheyenne. Great detail on the engine still wish these were in service. Definitely a stop for train and history lovers!!

not a train buff but the engine set in a park is mighty impressive simply because its so large. It only takes 15minutes and is only 5 minutes drive from downtown and its free.

This steam engine is located in a beautiful park. We enjoyed reading the history of the steam engine. The only negative, is that it was a little difficult to find. Be sure to look into the park from the street.

Anyone passing through Cheyenne on the Lincoln Highway should stop and see this engine. There are only 8 left in existance. It only takes about ten minutes to pull off Lincolnway into a pleasant park to see this.
The geese stole the show the day we were there. The white geese had two yellow goslings that were parading around the park showing off.

Located in a park at 17th and Morrie this 4-8-8-4 is one massive steam engine. I was surprised that something like this was in a park and not in a museum somewhere. I am glad that it is fenced in so that it can not be destroyed. It is a very nice park to take your children and spend time.,

If your a train buff, and my husband is, go and see the Big Boy Steam Engine. You will enjoy hearing the history of the engine.

One of the few remaining Big Boy's, This massive and magnificent Machine tells the story of Steam Railroading at it's best.
Located in downtown at Holiday Park and still straining to go, she will fill you with wonder and awe.
Suggestion is to tie your visit with a visit to The Cheyenne Train Depot for a true railroad experience.

Apparently the city heeded all the complaints about the poor condition of the engine. It is in a state of restoration and covered by a big plastic sheet. Also, the directions by Trip Advisor were wrong. We had to put in Holliday Park to find it after being sent to the middle of a residential neighborhood.

The shear size of this once powerful Steam Locomotive put in awe! Looking forward to seeing a Big Boy steaming again when Union Pacific completes the rebuild.

It took about an hour total to park and see the engine. We are not train people but it was interesting. If you have kids this engine is in a very nice park.

My wife and I have been in Cheyenne for six weeks and have walked in Holliday Park at least once each week. We have stopped by the Big Boy to watch the restoration project as it has progressed. I attended the simple dedication ceremony after the project was completed. I am impressed with the display and I will visit this park and the Big Boy again many times.

An imposing beast. This locomotive was the largest steam engine ever built by the Union Pacific to I'll large freight over the Wasach mountains from Cheyenne. Just one of 25 ever built. You can get up close, and read you can read the history, it is also in a nice little park for the kids to play in the playground. Worthwhile stop and easy access off Lincolnway.
Continue West on Lincolnway and go see the restored Union Pacific depot. A great visit for any train lover.

We stopped by the park specifically to see the Big Boy and were not let down! The sheer size and power that this engine created were amazing, and the facts of pulling the tonage and years of service were outstanding.
Its hard to find a spot to get a photo with you and all of the locomotive, but well worth it. For an old engine its seen better days, but see it before its forgotten.

Displayed in park area this old Pacific style train that was used during the War period to haul huge loads. Park grounds very nice too

Rare locomotive. It's sister is being refurbished for 2019 Union Pacific RR celebration. Largest locomotive used in US. Was used in service over Rocky mountains in Utah.

Largest Steam engine preserved and on display. Nice quite park in quiet part of time. Can see from car if you prefer not to get out.

It’s a beautiful machine. If you are asking Siri for directions just ask for directions to Holliday Park in Cheyenne Wyoming. Siri will not recognize the street address. And when you follow the map it takes you to the middle of nowhere.

Be sure to visit Big Boy, it's huge, and well preserved. Take a look/see. It's located in the downtown area in a park. Kids will love it, and wonder if he's related to Thomas, the Train.

After our touir of the Historic Depot, this was a must-see, in person. Union Pacific 4000 series steam engine. So big it had to articulate to make the curves.

This very large steam locomotive is in a public park that is easily accessed and centrally located. The engine is entirely surrounded by a chain-link fence, so it is not possible to get very close or take a good picture without having to include the fence.

A stop off on the Cheyenne Street trolley tour. Cool to see and read the history. Kids thought it was pretty cool too!!

We visited the big boy before we stopped at the train depot. I think my grandsons enjoyed seeing this very much. It would have been even better if you could have gotten on it? But it was very impressive to see.

The largest of the large, the railroad has one working which is based in Cheyenne and worth seeing when it's out working if you there at the right time

Stop by Holiday Park to see the Big Boy Steam Engine, it’s been there since 1963 and has been well taken care of. There is a Boot at a location when you go into the Park

This is impressive. The fence does indeed kill any photos. This is totally worth a stop if you are in the area.

Holliday Park hosts ALCO Big Boy #4004 that was built at a cost of $265,000 in the early 1940s. It was one of only 4 that still remain. It served the UP from 1941 to 1958 pulling heavy loads across the Rockies. Find the YouTube videos of the Big Boys to truly get an appreciation for how amazing these monsters are.

This is fun if you love old trains. But there isn't much else in this park to see. It's only 5 minutes from downtown.

Holliday park is a great park, let me just say that. It is an expansive park with Lake Minnehaha in the middle. We like to have lunch in the gazebo on the southern edge of the lake and watch the ducks. There are also 2 separate playgrounds for the little ones. And to top it off, the Big Boy steam engine sits on display for all to see. You can get an up close look and walk 360 around this huge locomotive. The only complaint I have is there is a chain link fence that encircles it. But otherwise, the visit is impressive.

In on a business trip from Chicago and hitting a number of locations in Cheyenne. This was certainly worth the stop! Absolutely amazing how big this engine is. This would have been really neat to actually see it operate.
It troubles me how someone can give a bad rating to an exhibit like this. If you don't like trains then you know that before you come here. So if you don't like them, don't come here. Don't come here and then give it a bad review because you don't like trains. For the rest of us, we like them and find this exhibit to be well worth the trip!

....and keep visiting to view the imaginative and ambitious restoration project. Well done Union Pacific!

Ok back to 19th... Huge, amazing but it'sprotected And not easy to see everything.still it's worth make thé stop

this is right in a park and the kids enjoyed it as well as playing at the park There is a sign there telling all about the train

parked @ a park, and looking lonely, this massive engine sits alone. But train enthuiasts will know what it has done. IT IS HUGE. and to stand next to it is AWESOME. Also about a mile away is another engine w/ family history. Mom and Dad who worked on trains, found and kept debris from tracks, and built a fence around their property w/ the debris. The children donated the fence and train co. also donated the steam train,& put steam train there w/ fence. Ask locals where it was. But Cheyenne has ALOT of History.

To believe that a locomotive of that size could ever be built is hard to imagine. This locomotive is a beast. Take 10 or 15 minutes and take the family to see a great piece of history

Saw the engine and took a few pictures. It is just what it says, a large steam engine in a park with a bunch of signs explaining it. Nice short visit.

I love trains so this was a real treat to stand next to an engine this big. Not much else to see at the park tho.

I was here to this loco, as well as the recently restored Big Boy, so this was definately on the list. Well located, and looked after.

Amazing what we have done in this country to claim the west. At the park my two boys wanted to grab the basketball rim and did. Way to go! I think my youngest was most disappointed he couldn’t climb up in it. Just its size was amazing.

If you are into trains this is a must. A huge engine one of 25 originally made, with only eight left in various museums around the US. Worth a visit.

They now have a working one at the depot for adventures on rails. If you have never seen one of these engines, you are midsing out. almost a city block long and two stories tall, these things are massive.

Being from Dallas, we have long enjoyed the Big Boy 4018 engine on display at the Museum of the American Railroad in Dallas (being moved to Frisco, TX as we speak). So we were very anxious to see a sister unit that is on display in Cheyenne. First of all, we found out that it is not at the Depot. Instead, it is about 11 blocks East of the Depot in a beautiful city park. The locomotive is impressive in terms of size. It's downright massive. Be sure to include a visit to the Big Boy in Cheyenne as part of your trip to the area.

Driving through seeing the sign we decided to stop and see the Big Boy Steam Engine any train buff would enjoy seeing it - even if your not - its huge. Its located in the park like small area with free parking. If you're in the area stop by - no need to make a special trip.

If you are a train buff or history lover you'll enjoy seeing this old Steam Train engine. It's quite impressive. The surrounding park is also lovely.

Its situated a little bit outside of cheyenne but it is in a nice park. We were hear to early in the year to benefit from any park activities that might go on in the summer.

We saw this on our trolley ride and got off to see it closely. It is so huge. Train enthusiasts will love it. It's located in a lovely park so can be visited mist anytime. Worth a stop if you like trains.

Largest steam driven train ever built, if you like trains, or just large machines in general, this is a nice stop. Would've loved to climb all over this when I was little but it's fenced off, look but don't touch. There's a park and pond, basketball courts, horseshoes etc. nearby, so would make a nice place for a picnic, and it's close to downtown so not really out of the way. As for the train, Disney princesses or techies may be bored but history/machinery people will find it worth the time, my dad's an old rail buff, he absolutely loved it,

Big Boy is a part of Cheyenne. I visit it often while walking about. I can walk around t and just wonder what was it like back then in ole Cheyenne....

Great, free attraction in the middle of the park. Largest steam locomotive in the world...it's a must see.
Highly recommend it, then in the same park is a great lake to walk around, horseshoe pits, basketball courts, and lunch tables.

The only downside is that it badly needs some restoration before it rusts out...the downsides to having it outside in brutal Wyoming winters sadly. Its free and definitely worth the stop if you love trains and are in the Cheyenne area.

Over 1 million pounds of moving mechanical steel and could (er did) reach 80mph via steam power. Or least it did, now its a static display. Still impressive to view. A cosmetic restoration was completed in 2018. It's on display in public park and free. There was a fence around it, so no climbing on it.
Interesting to note, that UP has resurrected one of the eight surviving Big Boys, and it's home yard is in Cheyenne. It does tours - look it up if you would like to see this alive and moving.

My daughter could not believe how big this train was until she stood next to it. She loved reading the information about the steam engine but the one sign should be replaced as the words are peeling off and stuck to the glass.

Its part of history, and a must see for train buffs. For others, it might not be as important a stop. Its fenced off, so a nice photo is practically impossible. Its not far from downtown, so its an easy visit if you have a little time. But, its not really a destination and can easily be skipped depending on your schedule. Look at some of the youtube videos before going and you'll enjoy it more, or maybe decide to skip it.

The engine is magnificent. As stated it is surrounded by fencing so it is hard to get good pictures and a good look but still pretty amazing. I would recommend that you go in the bright light of day. We got there around dusk and I was a little concerned about the area. There is a restroom very near the engine and when I went in some filthy clothing was laying on the floor. It was smelly and dirty and I immediately didn't feel safe. There were some questionable people hanging around the restroom. So we had a quick look, a few pictures and were on our way.

It is named well. The engine is huge. Seems to have seen better days, but certainly worth the visit. It is located in a beautiful park setting.

4004 is located in Holiday park - it is enclosed by a fence - with descriptive details and notices telling of it's years of service - it is one big steam locomotive - especially for the railway aficionado.
Go and have a look at what steam technology developed

This is a great place to visit. The museum was very interesting to go through. They had an awesome train display. We will be back.

It's just what it was described as, a massive train. As you can see from the plaque, there were 8 built. Nice park setting for stretching your legs.

Stopped by while passing through Cheyenne. This is a massive steam locomotive and while it is fenced in, you can get close enough to get a feel for the size. The park that it located in is nice and a good place for picnic lunch.

Five minutes walking around the Big Boy is enough but having gone to the Depot Museum helps appreciate the significance of this behemoth train.

This is the second Big Boy engine we have seen, the first located at the National Railroad Museum in Green Bay. This one was painfully restored and you can see a film documenting the restoration at the Cheyenne Depot Museum.

Although fenced, the train itself is huge and you really need to walk the train to appreciate the size and dimension.

This locomotive was recently refurbished & looks like a new one. These were the largest American locomotives - Union Pacific was the only road to use them. There is also a nice park to visit.

Large locomotives are few and far between, so to see one outside in a park is cool. It is fenced in however so you cannot climb inside. The park is scenic as well, and it is only about a mile from the Cheyenne Depot Museum, so an easy walk if the weather is agreeable.

Sits right in the park and readily visible. Cannot climb on it but looking is fun. It really is very large.

We drove up to Cheyenne from Denver specifically to see Big Boy. It's easy to find right outside of town in a park. It is fascinating to look at and read about. It's only one of 8 that were made and on display.

No questions about it. If you've ever thought about steam powered trains, ever wanted to get "up close" to one, ever seen a steam engine in action then this is a sight to see. You can look at the engine for what it was, a MASSIVE tool from the middle of the last century. Or you can look at it's parts and marvel at what it took to dream, design, build and operate what is arguably the largest example of what a train used to be.
But don't also forget the setting. The "Big Boy" is in a lovely local park, the kind of place you just don't find much any more. Neatly kept grounds, shade, playground for children, just a really nice place for the less-enthusiastic train buffs to spend a relaxing hour or so.
So consider coming by to be impressed by a monument to early 1900s technology and enjoying the surroundings as well.

"Big Boy" is a "huge" tourist attraction to many who visit Cheyenne. Located in a city park, it is free to view and there is plenty of information provided to learn more about this historic locomotive.

At the Depot Museum my wife and I learned that there was a Big Boy engine located a few miles away. As a couple of amateur rail fans we decided we had to see it.
Despite the poor weather, we're glad we swung through the park to see this behemoth! Since there are only 8 left in the world we're glad we sucked it up and threw on the rain coats!
What I want to know is how they got that monster over there!?!? My guess is that they had to build temporary tracks in order to transport it.

Took a quick look at this marvel of the late 1800's early 1900's It's a real work considering when it was made and what inter city travel was like back in the day before cars and air travel

This is a great free attraction to visit and also a good way to enjoy the park as well. It's a nice little piece of Cheyenne's history along with the Union Pacific Railroad.

This is a huge train in the middle of a park. The story is interesting. If someone in your family likes trains, and if someone likes to play on a playground, this is a good stop.

Great restoration of one of the 8 Big Boy locomotives in the US. Quiet little park area. Interesting to see if the weather is good. Interesting history. Plan about 30 minutes. FREE.

I am biased because I LOVE trains and only wish I had lived in the era when this one roamed the rails. I have wanted to see a Big Boy for years and years but had not made it from Va. to this area of Wyoming. It is impressive and I so enjoyed walking all around it in Holiday Park!

One of the few Big Boys still in existence. It is in Holiday Park, on 16th Street just east of the downtown area and is well visible from 16th. The locomotive is just a static display, and is no longer steam-able, but is is good (not great) condition. Well worth the visit.

Holliday Park is an inviting park with a piece of history you don't want to miss. Easily accessible, the steam engine is fenced off but that doesn't diminish the massive size of this steam engine. There are signs giving the history of the 4004 as well as homage to the person who helped bring it to Cheyenne. After Going to the Cheyenne Depot Musuem, you have to come here and see it in real time.

This train is an intersting part of railway history. Well worth a visit when in the Cheyenne area. It lives up to the name Big Boy!

Enjoy a nice walk through the park, feeding the geese, play horseshoes, have a picnic and visit the Big Boy. Engine was donated by Union Pacific quite a number of years ago when a special track was laid to move this Big Boy into the park.

Huge train in a pretty park. Liked the Canadian geese and the chipmunks wandering around the treed areas and the lake.

Ok - I just love the Big Boy in Cheyenne! I have an interest in trains, coming from a family which had employment ties to the railroad in Missouri.
I want to mention here that if you search about "Big Boys in Cheyenne, WY" or "Big Boys Union Pacific" or other such related types of searches, www.youtube.com has very interesting videos on the history of the Big Boy, on Cheyenne and this attraction and on the history of the Union Pacific in Cheyenne and the development and use of the Big Boy's, etc.
I suggest getting to know the history behind the Big Boy locomotives before going to visit this one.
This is great for photography as well.
I know for a fact, that many out of town visitors do come to see this, or want to see it while they are in Cheyenne for other reasons.
Its also located in Holliday Park, which is one of Cheyenne's lovely parks in a nice park system which they have in the city.
Go see it - you will like it.

We were looking forward to seeing "Big Boy" but it was under tarp and being renovated. The guys working on it were more than willing to answer questions, and we really appreciated this. Apparently, it is scheduled to be ready to get "fired up" next year. This is such an incredibly large engine with 7,000 hp. I can only imagine what type of cargo it pulled (probably coal)

This is a 5 minute stop in the park. For people who think about trains or mechanics, it's interesting to see how they put together such a big one, and imagine what it would be like to operate it, walking along the engine to maintain it. There is a single sign of explanation. Being outside, it's deteriorating some.

Our Trolley Driver and Guide briefly stopped here and told us about its history. A man and his son built it from scratch. After the death of the father, it was donated to the city of Cheyenne.
Note that it is located near the Botanical Garden and Frontier Park. Nothing much to see here, a brief 5-minute visit was adequate.

It was covered with scaffolding while undergoing restoration. One couldn't see much. It is huge and has historic significance but I wouldn't go out of my way to see it unless I was a huge Sheldon type train fan.

Title pretty much says it all. Big Boy has a history - if you know it, then you know why the train is here. If you don't know, or don't care about the history, it's just a train engine in a park....

We loved the history of the Cheyenne Depot so made the trip to see the Big Boy Steam Engine. The engine itself is impressive, but not much else related to trains here. The park however, is very nice. Nice lake with swans and geese. Birds I don't see much in Florida. Lake needs to be cleaned up a bit.

A very fascinating big locomotive that helps to better understand the history of the West. Some signs more would help to appreciate it more

My husband did some research on the 4044 Big Boy and enjoyed checking it all out. The fence around it, is close enough that you can see every part of the train, but it does get in all the pictures. It is in a nice park, but away from everything. In a perfect world, where there is no vandalism, , it would be nice if there was no fence and you could climb onto the train and check absolutely everything out!!

This 1.2 million pound steam engine is located in halliday park. It's rigorous. You can take pictures but it's hard to get good ones since there's a fence surrounding the entire train.

Looking at a locomotive sitting, slowly rotting away in a park is a forlorn business. You'd find it much more interesting to go to You Tube and type Big Boy where you can view on of these monster workhorses of the rails at work! Quite interesting. Union Pacific is restoring one of these locomotives in Cheyenne at their facility, and it will be ready to go out on the rails again in a few years, touring the country. Watch for it... UP.com has a website where you can view their calendar of rail events. There is another Big Boy, with a fresh cosmetic restoration, on display in Frisco, Texas.

The park this sits in is very clean. The train itself is very unique. There are signs placed around it telling the story of it

Nice, free and easy stop in a local park to see the steam engine. Would be interesting to kids and people who are into trains. It's essentially the train with an information board in the park - so don't expect anything beyond that. Good photo opportunity.

We were mighty impressed by this massive steam engine. It seems out of place in such a small park but it's definitely worth a look if you're in the area.

This is a huge park and cool, after you look st this huge, I mean gigantiouse train and read a bit of history. I recommend bringing food for BBQ the facility are here also sport courts basket ball volley ball horseshoes, and a walk way around the pound, or small lake, for the little people there are many play areas that rang over the age of the children, and a gift shop. Dog friendly , in cheyenne all dogs on a very long leash park , hint hint, also you can feed the geese, dont let the dog eat the greed bird poop

The locomotive is an amazingly beautiful piece of technology and locomotive history. While the big boy showing somewhere from being outside she is still well worth the visit. While the address is on Lincoln way, you enter the park from the far side

I wasn't prepared for the mammoth size of this engine. It seems to be in great shape. A definite must see for anyone interested in trains and/or steam engines.

You can only look at the Big Boy and take pictures. However, if you're interested in steam engines this attraction would have more to offer.

Impressive and made in Schenectady, NY too! Interesting history and there's even more of them somewhere.

The engine and tender is on a small piece of track adjacent to a park (with parking area) and has low fence around. As the world's biggest engine worth a visit for say max half and hour to walk around.

Well preserved and maintained giant steam engine, one of the few remaining examples of this the largest steam engine ever built (nicknamed Big Boy) and operated anywhere in the world. This engine ran between Cheyenne and Ogden UT, over the famous Sherman Hill. Awesome.

Yes it is big. Its starting to rust a bit around the edges. Its located in a park and is free to visit. It is huge. If you're into trains and engines this is a must way to spend 5 minutes

I love the history of this engine. Coming from a family of railroad aficionados, this is a must see! The park has changed so much and is a lovely stop for sightseeing.

Stumbled on the Holliday Park in Cheyenne to have a relaxing lunch on an awesome summer afternoon and found the Big Boy Steam Engine - what a great piece of history! Holliday Park is also an awesome, well shaded and relaxing oasis with public tennis courts among other amenities - nice courts for public use but sorry I didn't snap a pic of em.

I heard about these largest steam engines ever built, so when we saw there was 1 to see in Cheyenne while on vacation, we were there. It's in a nice park. It is bigger than I could imagine when seen in person.
We would recommend a short visit to this sizable piece of history.

Some of the signs are missing yet this still and impressive locomotive to behold. If you or the children are fans of trains this is a must see if you are in Cheyenne. With wheels 6 feet tall you will be impressed by this behemoth.

I came the other day and was fantastic. I had some bread on hand and got to feed feed some adorable geese and squirrels. Beautiful train, too nicely restored looks great

What an amazing piece of engineering. You'll get a neck cramp looking up how massive this train is. Jaw dropping. Wished this train was still traveling across the country. I'm sure it was impressive during its time in service. Highly recommend seeing a piece of history.

Just the size of this baby will amaze even those who are not train, or mechanical, or history geeks. Could stand some additional information, Cheyenne does not excell in the presentation of it's prized possesions. May wish to bring a lunch as it is sitting in a nice park. The lake is overgrown, stagnant, and infested with duck and goose refuse. That however is up for change as the City is considering dredging the lake 5 or 6 times deeper than it currently is. This will likely not be as pleasant for the water fowl, but will be healthier for them and the human citizens (and our noses).

Generally, I plan the adventures for my husband & I when we go out of town. However, my focus on this trip was to survive the marathon and to spend quality time with the friends we were visiting when I was not running, so he took the bull by its horns and researched some things to do while we were there. One of the things he insisted we visit was the Big Boy Steam Engine because he grandfather was a conductor on the Union Pacific Railroad. Well, it just so happened that my marathon course took me right past the Big Boy Steam Engine. It was so amazing that I stopped en route to take some pictures for my husband in case we did not get back there together! However, later that night we did go back and he was just as impressed. To get there, take Morrie Avenue to E. 16th Street and you will find plenty of parking. The steam engine is near the Holliday Park tennis courts.

This is located within Holliday Park. Unfortunately when we visited in May they had it completed covered and doing repairs.

nearly missed this old steam engine hidden in the gardens worth a look while you are near the frontier museum

It's big, it's black and it's a train....
For me not real exciting but for my hubby and son they found it very interesting.
Some info was on plaques around the train that was completely surrounded by a wire fence....
Boys enjoyed checking it out as I'm sure other train enthusiasts would too

Came to park to take pics because we didn’t get to see the scheduled arrival at the depot. Kind of hard to get good pics with a chain link fence around it but the park itself is gorgeous. Great play area for kids to burn off some energy

One of eight remaining Big Boy locomotives. It's in very good condition, and allows a good close-up inspection of its many parts.

On the day we visited, the temperature was in the high 40s, with wind 35 gusting 58. I actually saw a medium sized tree get snapped off at the base! The Big Boy is in good to fair condition, but is of course fenced off to discourage vandals. There is no admission, so this exhibit gets high marks, for authenticity, value, and historical significance.

Its kind of funny the second best thing to see in Cheyenne when I went was this Steam Engine. I am not sure I would make this a must see like Frontier days, but it is a really big engine, and if you like trains you will like this one. Unfortunately, there was not a way to get up close or climb on the train when I was there.

My son's has loved trains ever since he was a small boy, and now he works for the RR, so we need to stop and look at the big train, as if he were still that little boy.

Its strange but you can look at this beautiful machine for Hours. Please get rid of the fence its to high you cannot take pictures very good. OR enlarge the area and get Volunteers to open the fence area.

This is something that anyone visiting Cheyenne should see. It is one of a very few that were ever built and is something so big it is hard to imagine. My grandfather worked for the railroad as a mechanic and was responsible for maintenance on this engine. I highly recommend seeing this.

Stopped to see this amazing engine. Really huge. It appeared to be in good condition and nice the ity displays this railroad giant

Holliday Park is a pretty nice park located more on the East side of Cheyenne. The Big Boy Steam Engine is huge! Fun to look at especially for little ones that like trains. Plenty of parking. Paved with lots of shade all around the train engine.

A friend recommended this, and we were ho-hum about it, but we stopped by anyway. It's been recently restored and looks great. It really is a big engine, and looks awesome up close. It's located in a beautiful park, near the main drag. You can see it from the road, but to appreciate it, get out and walk around it. Any train/steam engine buff will love it. It's worth a quick stop if you're in the area.

Steam locomotive fans wouldn't miss the chance to see the "Big Boy" while in Cheyenne. If you're not a rail fan, this glorious engine from a bygone era might look like a hunk of steel sitting in a park. But for rail fans, it is a surviving example of the greatest motive force every put on the rails. It is one of the "Northern Class" of engines with dual sets of 8 driving wheels (16 in total) uniquely built to climb and descend the Rockies in conditions ranging from blistering Summer heat to savage Winter cold. Our family group (kids to senior) enjoyed seeing this American marvel, even though it is a static display (you can't go in it, much less ride in it). The park is off the beaten path, but was easy to find using GPS. Highly recommended for rail fans.

If you are a train buff or are literally driving by this is worth a stop but I don’t know that it’s worth going out of your way to see.

This engine is one of only 8 surviving in the world. It was retired in 1958 and is in Holiday Park . It is free and very cool to see.

A historic steam engine - one of the largest ever made. If you love steam, stop and take a gander. Great picture opportunity.

Its a big rusty retired engine with a fence around it and a bit of history. I guess if your a train fanatic then this would be great, but boredom set in before we stopped to see it. Best part is the park behind it.

Great thing to take kids to, especially. If they enjoy locomotives! My son loves trains and the size alone leaves him in awe!

"Big Boy" Stem Engine - another attraction in Cheyenne,WY.
The biggest stem engine in the world, as the last one used on regular duty, has found its resting place in the Holliday Park in Cheyenne,WY.
It was brought there in 1963 by building temporary section of the tracks connecting park with regular railroad.
For the fans of the steam engines it should be a big deal to see the biggest one with their own eyes.
I recommend this attraction which was renovated last year.
RomanP

We used the location in TripAdvisor and it took us out to the country. The train is actually located in Cheyenne at Holliday Park, 1705 Morrie Ave.
Always a fun visit. Take the time to stop. Lovely park.

What a wonderful piece of history. Kids love it, parents are amazed by it. It sets in a beautiful kid friendly part. There are toys for all ages. So have a pic nic and enjoy the history and get some exersize for the kiddos.

This Union Pacific Big Boy steam engine is one of eight remaining one that were manufactured to haul freight over the Rocky Mountains between Utah and Wyoming. Bigger that you would imagine.

This is worth stopping to see, but it won't take you more than a few minutes to do so. It's located in pleasant Holliday Park. This is one of the biggest steam locomotives ever built...and indeed, it is humongous!!!!! But, it has sort of been left as it was left (so to speak), and needs to be refurbished. But believe me, many railroad museums would give their eye teeth to get their hands on this!

Train buffs will enjoy looking at this display, but will probably be disappointed that it isn't located closer to the Cheyenne Depot and the UP roundhouse.
It is located in a nice park (Holliday Park) and there are a few plaques providing information on the locomotive but the chain link fence surrounding it will prevent you from getting any high quality pictures.
For Cheyenne and it's train rich history, it is nice that they have this locomotive, but for a more well preserved Big Boy, go to the Lauritzen Gardens in Omaha for UP 4023.

Yes, there is a Big Boy in Holliday Park, just off East Lincolnway. (Take 16th Street east from downtown). It's impressive in it's size--largest steam engine ever built. There are information signs to give you more details or go to www.UP.com and type "4014" in the search box.
Big Boy #4014 was moved from a park in California to the steam shop (next to the round house) and is in the process of being totally restored to running condition.
The engine in the park is not #4014; it's #4004.
See the size and come back in a few years when UP has #4014 running on the tracks again.
Photo is of #4014 coming back to Cheyenne in 2014.

the park that this locomotive is located in a very nice park but you can tell that the locomotive needs cosmetic work.

Amazing train and great information about it's history. Really enjoyed seeing! Nice area to walk around, or sit and relax.

Since the engines at the Depot Museum were closed, this is the only one you can actually see. This one is beautiful.

Choo, choo! All aboard! This engine is big enough to fit everyone. Best part is that viewing it is free.

The Big Boy Steam Engine is nestled in a great park with plenty of shade and activities for kids! There is a paved walking trail that surrounds the park which is nice if you'd like to stroll as you view Big Boy.

For being in a park, the locomotive is in relatively good shape. Take a picture and put yourself in one.

Having railroaders in the family always makes railroad memorabilia interesting. Because this is different it is a must see.

The train was awesome. Nice big park for the kids to play at. Covered areas for family get togethers.

The Big Boy is probably getting a higher rating from me than the average person might give. . . but I like trains. You likely have some interest in trains if you are stopping here anyway. A simple turn off the main street to a park with plentiful parking gives you easy access to look this giant over. I wish the chain link fence did not have to obstruct the view but understand it is probably needed for safety reasons/to keep hoodlums out -- even though it looks like some have hopped over to spray graffiti in the windows anyway.
I made a point on the way thru Wyoming to stop and see this Steam Engine and I am glad I did -- the scale and power is difficult to appreciate unless you see the Big Boy in person. I also applaud those that had the forethought to put the Engine on display vs. turning it into scrap iron!

Heard that one of the remaining biggest steam engines ever was in Cheyenne so we just had to stop and take a look. Can see why they called it "Big Boy". It was worth seeing.

We walked out here specially to get a photo as a friend of ours is very interested in trains. It is well preserved and has an information board.

It's off the beaten path but an interesting diversion. One of the largest steam engines ever built. The story boards are interesting.

I love trains and would drive a 150 miles just to see Big Boy. I hate the cheap chain-link fence that is too close for taking photos. I think putting the fence close on one side for getting close to the old iron and extending the fence on the other side would make for a more polished, postcard like experience in Cheyenne.

While on a business trip I happened to be in Cheyenne and got to see the 4004 Big Boy. The site was easy to find and there is a lot of parking. This Big Boy seems to really be in good shape and worth a visit.

Excellent stop for kids and railroad heads. One of 3 left in existence. The train is located in a nice park and very easy to get too. It is also very close to the roundhouse and depot square downtown which are must see places for fans of rail.

It is cool to see this engine and imagine its heyday - being the workhorse engine that pulled trains up and over the mountains of Wyoming. But this one is sitting in the middle of a city park surrounded by a chain-link fence and totally untouchable. This could have been so much more - placed maybe by the all the other trains/tracks in this city - or with a walk-through or something. I spent 5 minutes here - and that is only because it took some time to walk from the parking lot to the engine - and that was probably 3 minutes more than needed. Oh well.

My husband loved this. He was quite fascinated. If this is your thing it is free to see and the park where it is was nice.

Having grown up in the NY metropolitan area, I want to NYC many times and my ONLY rail experiences were the NY Subways {many lines} as well as NJ Transit. There is LITTLE appreciation of the size of those rail cars as the length of the system is the emphasis. Plus the trains run on electricity {the infamous 3rd rail} so the mechanism of transport is really unseen.
However, when I saw the Big Boy engine, I was totally blown away by the sheer enormity of the machine. At over 1.2 million pounds {6000 TONS} and over 123 feet {41 YARDS}, the size of JUST the locomotive is awe inspiring. When you consider this machine was constructed in 1941, that makes the feat even more impressive. The cost at the time was OVER a quarter million dollars which is over FOUR million dollars today. It travelled almost a quarter million miles before retiring and getting placed here as a permanent attraction. It's free and it's worth appreciating a time when things were SO much different when it came to transportation of goods as well as travel.

Located in a very well maintained public park. GPS directions for the park area somewhat confusing but there is minimal traffic on the side streets so it is easy to find after you get into the general area and park within the park.

It's great to see that much metal in one place which was a part of railroad history. The display is near a park so when youngsters tire of viewing a static display, there is someplace to play.

Located in Holiday Park, this HUGE steam engine is in an area set aside for photos and walking around its perimeter. The size of that engine will amaze you.

This is a must stop especially for anyone who likes trains or train history. We enjoyed seeing it and the park here is nice too.

If you have a love for railroading this is a short stop you must make to see this size of this beast in the nice park setting. This is one of a few Big Boys Steam Engines left and it is sad to see it not sheltered from the weather to preserve it for another 100 years. This beast was built to haul heavy loads across this great country, over the mountains and it is amazing to see the size of it in person, all the mechanical parts and imagine how it can remain on the rails at full speed. Hopefully someday they could provide a shelter and then allow access inside the cab. I am sure that would inspire lots of young boys to get engaged in railroading.

the park is buggy but worth the trip. Horseshoes ( lots of sets) Tennis , volleyball, basketball , a lake and Big boy locamotive as a center piece, The white geese were interesting.

Easy to find, nice setting in a park location, information board, count the wheels!!

Very impressive – hard to believe that anything this scale could be manufactured. The “Big Boy” is a huge piece of forged steel that inspires awe at its sheer size upon seeing it. I often wonder how something this large could even sail down the rails. A well maintained piece of history which offers a glimpse at the steam engine area. It is a massive train and impressive piece of American history. It is located in a nice park in Cheyenne which offers grills, picnic tables, plenty of parking, a pavilion, tennis courts, etc. The only drawback is, you can’t climb on the “Big Boy” Engine and our touch it as it is behind a fence. Worth the stop to view the “Big Boy” and awe at its massive size and power. Safe travels – Enjoy!

While in CO, we took a quick ride up to Cheyenne, just to "check out another state". We stopped by the Wyoming State Museum and spoke to Jackie in the gift shop. For quick hits, she recommended Big Boy and Terry's Bison Ranch. - So, we checked them both out.
Big Boy is this big locomotive stationed at the edge of a park. It's very easy to get to and there is free parking available. I'm not necessarily a train enthusiast, but it was impressive to see this monster piece of machinery and read about its history. All in all, we were there for about 15 minutes.

Much bigger than I thought it was going to be. Now I know why it's called Big Boy. Very interesting reading abut it.

What can you say except WOW! It weighed over a million pounds and even though it is no longer in running condition if you go to the depot museum first it will make it even more impressive.

There were several pictures of this engine and the other "Big Boys" in the Depot Museum so we decided to see it afterwards. If you are a train enthusiast you have to see this one. It is huge! The pictures in the museum do not do it justice.

This train is in a park. You can't touch it because it is fenced but you can get very close to it and take pictures next to it! This is pretty neat to see if you love trains!

My passion for Lionel toy trains has spilled over to the real deal. Big Boy locomotives are enormous! I have seen it's little brother, the Challenger, run in central Illinois - fantastic! I can only imagine the speed and power of this vintage Big Boy locomotive. There are only a handful of these locomotives still living. This one in Cheyenne's Holliday Park is available for viewing 24/7. There is no admission charge, parking is free. My understanding is that this locomotive (which is on display behind a chain-link fence) is not scheduled for restoration. If you or your kids are interested in trains, take 30 minutes to visit. It is located in a really nice city park.

Big Boy was one of 25 built in the 1940's, taken off steam in the 50's, great shame. 132 feet long with 16 big wheels and 12 small ones, it carried 28 tons of water and weighs 1.28 million pounds! What else can I say: go and see it for yourself!

While it's really cool to see a piece of history and a really neat engine, the fence and surrounding area kind of take away some of the atmosphere. Would be better if it was in a museum.

Cheyenne from its earliest days has been a railroad town. In fact, today over 90 trains a day arrive and depart the local rail. This one of the largest steam engines has been preserved by the Union Pacific Railroad to celebrate its railroading heritage. This massive engine make the average person feel really small in comparison. A must for all railroading enthusiasts. Also check out another well kept secret in this same location called Holiday Park. Look for the carriage house and inside you will find a treasure trove of local artisans will goods to sell. All told a good green spot to hang out, play sports, or even have a picnic. Just another positive reflection of the city's civic pride.

We walked to this site and were amazed to see how big it was. Located in a peaceful park, we followed the sidewalk path around the park. There is no fee to enter the park or to view this huge steam engine. It is impressive.

We are on vacation and will see 3 of the 8 Big Boys on our trip. Like the one in Omaha, this one is in great shape. It is tucked away, but has a great playground nearby. Great to let the little ones let their energy out.

I was just a little kid when I watched Big Boy roll into its final resting place here in the park. As a career engineer (not the train kind) I still find this engine fascinating for all the nuts and bolts that made it te powerhouse that it once was

Stopped off in trolley tour. Have never seen anything that size before. Difficult due to its size to get a good picture.

It is amazing how huge these steam engines were. What amazes me more is how they could have built such a monstrous machine.

One of only a few remaining examples of the Union Pacific Big Boy Steam locomotive, it is well worth a stop just to walk around the Big Boy and marvel at the size and power of such a machine.

Not much to see here, but the kids enjoyed walking around the engine (one of the largest in the world) and playing in the park afterwards. Good way to spend a couple hours.

Great old steam engine on display in a public park, easy to get to and fun to look at. Could use a bit better care, it's not publicly supported, which is a shame.

Located out of town in a lovely park it looks a little forlorn on a small length of track. Still impressive but in need of restoration.

One of the largest steam locomotives ever built. Sits in a city park. Not far from downtown Cheyenne and the Depot Museum. A worthwhile 15 minute stop.

I planned this as part of our trip from the beginning. While I am not a real train buff I am old enough to remember the last of the steam engines and there is just something special about them that modern locomotives don't have - sort of like comparing a 1955 Ford 4 dr Town Sedan to a 2013 Ford Focus - they are both cars but the 1955 is special.
Our GPS had some difficulty in finding the location of the park but we stayed on task until we found it.
Standing next to Big Boy puts into perspective just how big the largest locomotive ever built really is and knowing that it "bends" to take curves is amazing.
Everything has to be somewhere but it seems that the train terminal downtown would be a better location or perhaps on a siding adjacent to the station.
Walter & Claudia Hutchins
Douglasville, GA

Train enthusiasts will love it. For us, we spent five minutes there and moved onto the park. They do have a great playground area and sidewalks all the way around.

I'm an aircraft mechanic so I am amazed at mechanical things. I stood in amazement at how big this thing is. Very cool to see history preserved. I think I know why you are not able to climb around on this thing but it sure would have made my day if I could have. Worth stopping and seeing if you're into things like this, my wife wasn't amazed. IT'S BIG!!! Also free.

Well done Cheyenne for saving this important piece of railway history, for this town which has such close links to the railway. Marvellous piece of machinery - awesome!

If you love steam engines then you will want to stop here and walk around this magnificent Big Boy. Yes, the fencing is annoying but if it wasn't here I'm afraid there would be those who would deface this beauty. It's a great way to stretch and get the kinks out before you continue your travels across Interstate 80. It's a quick visit and you are on your way. Don't forget the Train Depot just down the road it's a beautiful building and from my experience we saw a few trains moving past.

First, do not follow the Google map directions here. Pleasant drive and we saw antelope, but takes you to the middle of nowhere. Started fresh and found it. Amazing, HUGE engine and history info provided. It is very well maintained and behind a fence to help it stay that way. Definitely worth a visit, and there is a great playground right there for the kids.

Huge steam locomotive. It’s a shame it can’t be inside a museum but it is still a great thing to stop by the park and see while in Cheyenne

A massive steam engine that is well maintained. The unfortunate thing is that it is look, no touch. This is set in a popular city park. Makes you wonder how they got it there.

If you like trains, this is a must stop. Lots of parking and in a great environment to relax. Not to far out of the way either.

Seeing 4014 was a little disappointing. The chain link security fence really obscures much of the lower details limiting much possible photography. Better though, to have it saved, & photograph others still around, than to have it scrapped. About 10 blocks East from Depot in Holiday Park. (A nice little park by the way.)

Yes, the engine is there, but windows were broken out, the engine number is painted over on one side of the cab and the paint job is poor. A much better example of a Big Boy is the one in Omaha Nebraska in I-80.

If you love trains, you will want to pay a visit to the Big Boy steam engine which was built in 1941. It is one of only 8 left. No. 4004 was the world's largest steam locomotive, using 28 tons of fuel and 25,000 gallons of water for the trip from Cheyenne to Ogden. 25 Big Boys were built for the Union Pacific. It was taken out of service in 1958. If you are a train buff, you won't want to miss Big Boy.

Don’t follow the apple map imbedded on this site. GPS does not work well, we ended up 20 minutes away on a gravel road. After readjusting, made it to the site and was wonderfully impressed. This train is a mammoth! Check out the six foot wheels and sand jet at the wheels.

Love taking the family here to see the trains. My little boy always love seeing the steam engines like Thomas

I've seen pictures and read descriptions. I've seen video of the restored Big Boy in operation. But, until you actually stand beside this behemoth you can't fathom just how big Big Boy really is. What an amazing piece of railroad engineering!

The train is just a photo op, nice to be at the largest steam engine. The engine is rather ugly...large...but ugly. It is worth seeing for historical reasons, but not fun/aesthetically pleasing to look at. Still glad it is there to see.

This big locomotive is located in a park in Cheyenne and not at the railroad/depot museum. It's near the road and you can easily turn into a parking and walk the last few steps. We were there when they were fixing it but we could have a look at it though. It's huge and you can go near but not inside.

Stopped by on our way to the Grand Tetons! It was definitely worth stopping to take photos of this "Big Boy"!

The Big Boy Steam Engine is in a local park. It has a sign explaining the history behind it. If you are a locomotive history buff than you'll want to take a few minutes and stop by and see it.

This was cool to see. History of being one of the first steam engines used in area. Still looks great. Only knock is it belongs in a better display area besides being behind a chain link fence. Other than that it's a cool stop to see.

had been looking forward to seeing this all through the holiday. Holiday park is ideal for it. I did feel it was rather tired and needed a bit of t.l.c. Although it has apparently stood there for 50 years it looks good. Perhaps the numbers at the front of the locomotive should be put back to make it looked cared for.

One of only eight on display in the USA, Engine No. 4003 is one of the largest steam locomotives built. A "must see" for train lovers and worth a quick visit.

While passing the park in Cheyenne we noticed the large railroad engines. I was stunned by the size of the engine and return again.

If you are into trains, you will like this. And, it is next to a very nice public park. But, it is just a static display of the engine so it won't take long to read the 1 or 2 plaques beside it and move on.

Interesting to learn about the largest steam engine ever built. It's a good place for a short stop as long as the weather is nice.

I love trains, so there isn't much wrong with this. It seems as though the park has gotten a lot of work lately and is actually becoming quite a nice park. Well, except for the goose feces everywhere.

We saw this while on the Trolley tour. The only thing was, it was hard to get decent pictures because they had it behind chain fence.

My family are nuts for anything pertaining to trains so this was a must see for us. It's located in Holliday Park At 17th & Morrie Ave. It's a lovely park with paved walks and a nice pond. You'll find the Big Boy in the S.E. corner of the park. This Big Boy is one of only 8 such remaining locomotives in the U.S. It was coal fired and made to pull heavy trains over steep grades between Cheyenne and Utah.

Interesting for any train buffs of any age. Stop in and learm why it is so big, and how it was used.

This is a must see. My Grandfather was in charge of maintenance on this engine. I am sure that you will be "blown away" when you see this.

The Big Boy series of locomotives (there were only 25 built) were built to provide two steam engines (and increased power) under one boiler. That way, one of these giants could do the work of two separate locomotives. This meant savings in investment, maintenance, and manpower dollars for the Union Pacific.
The Big Boys came along at the outset of WW II and were sorely needed at the time to haul heavy wartime loads over the western mountains. Diesel locomotives came along in great numbers after WW II and so the days of the Big Boy were relatively short.
This one in Holliday Park in Cheyenne is beautifully preserved. I just wish they had put the fence back a few more feet from the locomotive so as to make photography easier. But it is, what it is. This locomotive (#4004) is a sister to #4014 that UP is now completely restoring in Cheyenne. When restored, #4014 will be used in excursion service by UP. That will be a sight to see. I hope I get to ride behind it someday.

Worth visiting if you have any interest in trains. This thing is massive, probably twice the size (maybe bigger) than a regular steam locomotive.

The locomotive is located in a shady park in central-ish Cheyenne. If you are interested in locomotives, American history, it's worth the stop. Not sure About restroom facilities, but the park is a nice place to have a picnic. It is a free site.

If you are in the area, this is worth the 15 minute stop. Walk around, read the signs, gawk in amazement on how big it is.
Then go back to the car and look up a YouTube video of one of them in action.

Husband was very excited to discover we were staying just down the street from Holiday Park and the Big Boy. It was one of the first things we visited. A must for any train lover. Was told by trolley driver that Cheyenne is restoring a second Big Boy, so we'll be back out to see that one someday as well.

Amazing piece of machinery... awesome. Once cutting edge technology, now obsolete. They are letting the elements degrade it

This is the world’s largest steam engines. Twenty-five of them were built in the early 1940’s. The last one was retired in 1958. This is one of only eight remaining Big Boys. It is easy to see how the train engine got its name. It is an interesting sight to see; but not a must see at all.

When in Cheyenne, this is a must see for any railroad fan or history buff. The park area is very nice and accessible from the side street and one way drive to the park. There is a picnic shelter adjacent from the locomotive and room for good photographs.

The Big Boy sits in a cute little park and has a lot of great history to it.

After finding out that you can't always visit the 4014 Big Boy that is being restored, I did the next best thing and stopped by to see this one. An impressive locomotive for sure. The only disappointment was having to look through a chain link fence which didn't allow for good picture taking.

This massive steam locomotive is one of just a small handful remaining in the country. It’s sheer size is almost incomprehensible once I got up close. Unfortunately, it is on display in a rather out-of-the way part of town, tucked in the back of a park. At the time of my visit there were a group of ‘unsavory characters’ hanging out nearby which made me not want to linger any longer. For such an incredible icon, I feel it should be more prominently displayed, perhaps at/near the Depot Museum.

It's a strange sight to see this huge locomotive sitting in the middle of a city park, next to tennis courts and playground. Something from the past -- an interesting thing to see in this railroad town.
Seeing Photos of this engine number 4004 on the listing for the historic Union Pacific depot in Cheyenne, I couldn't resist chiming in to praise this site. And now That I learn that another one of only eight remaining of 25 articulated, coal-fired 4-8-8-4 behemoths that were ever made between 1941-44 is in Cheyenne and is being refurbished for the Depot Museum to eventually pull excursion trains, I can't help but return the favor and praise it! Number 4014 was in Pomona California for some time and now it is back home again in Wyoming! I can't wait to bring my family to take the ride when it's available!