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Every Hot Spring

Thermopolis Hot Springs

Thermopolis Hot Springs is a hot spring with developed pools near Thermopolis in Hot Springs County, Wyoming. Water at the source is recorded at 133°F (56°C), hot enough to scald. Records place it on public land. Fees and entry: Free State Bath House; commercial pools nearby charge admission.

133°F56°C recorded at the source
Scalding at the source. Do not enter without a cooled, mixed pool.

The Thermopolis hot springs flow over colorful terraces along the Big Horn River in Hot Springs State Park, where more than 1.8 million gallons a day emerge at a constant 128 degrees F. The park's State Bath House is a free public facility with the water held at 104 degrees, open as part of an 1896 treaty with the Shoshone and Arapaho tribes.

Facts

Coordinates
43.6539, -108.1944 (Google Maps, OSM)
Source temperature
133°F (56°C)
Access
Public land
Type
Developed pools
Fee
Free State Bath House; commercial pools nearby charge admission
Clothing optional
Not recorded
Nearest town
Thermopolis
State
Wyoming
Data sources
NOAA NCEI, Wikidata, Official sources (linked below). See sources

Map

Larger marker is Thermopolis Hot Springs; smaller markers are other springs within 50 miles.

Quick answers

Can you soak at Thermopolis Hot Springs?
Records place Thermopolis Hot Springs on public land. That is not a guarantee of current access: closures, fire restrictions and road conditions change, so check with the land manager before you go.
How hot is Thermopolis Hot Springs?
The hottest recorded reading at the source is 133°F (56°C). That is the outlet temperature, not a pool temperature; water cools as it flows away from the source. Water this hot can cause serious burns, so test any pool by hand first.
Is Thermopolis Hot Springs free?
Yes. Fees and entry: Free State Bath House; commercial pools nearby charge admission. Fees change, so confirm before you go.
Where is Thermopolis Hot Springs?
Thermopolis Hot Springs is near Thermopolis in Hot Springs County, Wyoming, at coordinates 43.6539, -108.1944.
What other hot springs are near Thermopolis Hot Springs?
The closest listed springs, in straight-line distance, are Hot Springs State Park, under 1 mi; State Bath House, under 1 mi; and Fountain of Youth, 1 mi.

Before you go

  • Temperatures are measured at the source and can be far hotter than any soaking pool. Test with a hand before stepping in.
  • Access, fees, and road conditions change. Verify with the land manager or owner; "public" here reflects survey records, not a current right of entry.
  • Water in natural springs is untreated. Keep your head above water and avoid soaking with open wounds. Some springs carry Naegleria fowleri risk.
  • Pack out everything, including soap residue. Many springs have been closed because of trash and overcrowding.

Sources

Dataset last rebuilt October 11, 2026. Not yet checked on site by a person. Access, fee, clothing and closure details appear only when a source below states them. How this data is built.

Checked against

  1. Wyoming State Parkswyoparks.wyo.gov/index.php/places-to-go/hot-springs
  2. Wikipediaen.wikipedia.org/wiki/Thermopolis,_Wyoming

Merged from

  1. NOAA NCEI Thermal Springs List (archived 2025): survey location and source temperature, public domain
  2. Wikidata: name, county and website, CC0