Photo by Jessica Boyett via Google Maps
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About Hot Springs State Park
Home to the world's largest single mineral hot spring, Big Spring flows at over 3.6 million gallons per day and feeds a free public bathhouse operated by the State of Wyoming — the only state park in America offering free hot spring soaking. Vivid rainbow-colored travertine terraces cascade down the hillside near the Big Horn River, rivaling those at Yellowstone. A bison herd roams the park grounds, adding to the quintessentially Western experience.
Access
Wheelchair accessible
Overnight
No
Clothing Optional
No
Features
Water Minerals
Frequently Asked Questions
- What is the water temperature at Hot Springs State Park?
- The water temperature at Hot Springs State Park is 127°F.
- How much does Hot Springs State Park cost?
- Hot Springs State Park is free to visit.
- Is Hot Springs State Park clothing optional?
- No, Hot Springs State Park requires swimwear.
- What minerals are in the water at Hot Springs State Park?
- The water at Hot Springs State Park contains Calcium, Sulfate, Chloride, Sodium, Magnesium, Bicarbonate.
- How difficult is it to get to Hot Springs State Park?
- Hot Springs State Park has a easy difficulty level with wheelchair accessible access.
Recent Google Reviews
"Most unbelievable experience. Snow on the ground & stream coming up from the water. Well thought out walkways & bonus suspension bridge. Lots of places for spectacular viewing. Wish we had more tim..."
"In August 2025, we visited the Hot Springs State Park in Thermopolis, Wyoming. The hot springs are adjacent to the Bighorn River, and they claim to be the world's largest mineral hot springs. The mi..."
"Great place and the gentlemen at the visitor center desk was exceptionally nice, helpful, and informative. We will definitely return when we have more time to spend in this really cool town! We also L..."
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