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Thermopolis, Wyoming: World's Largest Hot Springs

A natural, steamy attraction of 127 F degree water containing healthful minerals. Park includes the state bath house, Rainbow Terraces, dinosaur statues, and a swinging bridge.

Hot Springs State Park

168 Tepee St., Thermopolis, WY
Northeast edge of town in Hot Springs State Park. Follow Park Street as it splits off of US 20, then turn left onto Buffalo Street. The hot springs will be straight ahead.
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Visitor Tips and News About World's Largest Hot Springs

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World's Largest Hot Springs

Avoid the "RV" parking spot by the swimming pool if you are towing. It's a trap! It is a tiny parking lot with no turnaround. It has about 5 back in spots. I had to unhook my toad on a slope to get out of there. Ugh! Just go up the road a little further and you may be able to park there. Also: the main entrance has an RV unfriendly 12 clearance. Actually less as it's a gully underpass that decreases the clearance on a long vehicle. I'm 11.5 and only had 2 clearance. Use Broadway and go past the hospital instead. Be safe.

[Bob, 06/26/2020]

World's Largest Hot Springs.

World's Largest Hot Springs

The title "World's Largest Hot Springs" is definitely deceiving, as largest doesn't apply to the size, but to the amount of water that flushes through. But visitors can take a free dip in the heat regulated indoor/outdoor pools. Beautiful park and friendly staff.

[Shannon and Ashley, 06/14/2019]

Hot springs.

World's Largest Hot Springs

Be sure to bring soap. Didn't know what to expect. These are mineral springs. They will furnish a towel, but not soap. smelled like sulphur the rest of the day.

[Mylak, 07/14/2012]

June 2019: Photo added.


Hot Springs Dinosaur

The dinosaur is located at the entrance to Hot Springs State Park.

[Joe Boulter, 09/25/2011]
World's Largest Hot Springs

Two parts, one a state park with large travertine terraces and picnic area. There is a free soaking pool ("state bath house"). There are also several commercial hot spring pools with waterslides. Lots of fun for children, but take water shoes, as the warm water and mineral deposits are like sandpaper on the soles of your feet.

[George, 05/15/2006]

Nearby Offbeat Places

Safari Club LoungeSafari Club Lounge, Thermopolis, WY - < 1 mi.
Museum of Flight and Aerial FirefightingMuseum of Flight and Aerial Firefighting, Greybull, WY - 59 mi.
Grave and Statue of SacajaweaGrave and Statue of Sacajawea, Fort Washakie, WY - 58 mi.
In the region:
Cody Dug Up Gun Museum, Cody, WY - 74 mi.

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