Thermopolis, WY
State Bath House (Hot Springs State Park)
Free public bath house inside Hot Springs State Park, fed by the world's largest mineral hot spring; indoor and outdoor pools cooled to a therapeutic 104°F, set among…
Snake River Canyon / Jackson Hole · Jackson, WY
Astoria Hot Springs
Day pass from $26day-use admission
2soak styles
Jacksonlocation
Snake River Canyon / Jackson Holeregion
About these waters
Six temperature-controlled natural thermal pools (100-104°F+) along the Snake River in Astoria Park, 20 minutes south of Jackson; nonprofit-run with timed reservation sessions, a kids pool and cold plunge, all revenue supporting the park conservancy.
Amenities
✓Six soaking pools
✓Kids pool
✓Cold plunge
✓Changing rooms
✓Showers
✓Snack shack
✓Picnic area
Good to know
- Listing researched October 2026 — prices and hours change, always confirm with the spring before visiting.
- Hydrate between soaks and limit hot soaks to 15–20 minutes — mineral water dehydrates fast.
- Wild springs run on the honor system: pack out everything, leave the pool cleaner than you found it.
Advertisement
Astoria Hot Springs: FAQs
Do I need a reservation or permit to visit Astoria Hot Springs?
No reservations — wild springs are first-come, first-served. Some trailheads require a parking pass or day-use fee, so check the listing details and current land-manager rules before you go.
What should I bring to Astoria Hot Springs?
Swimwear and a towel, drinking water, a trash bag (pack out everything, including food scraps), and a headlamp if you're staying for sunset. Never bring glass near a wild spring — broken glass in a pool ruins it for everyone.
Is the water temperature reliable at Astoria Hot Springs?
Wild spring temperatures shift with seasons, rainfall, and river levels — a pool that's perfect in October can be scalding or flooded in May. Test the water with a hand before getting in, and check recent trip reports for current conditions.
Keep exploring
Related springs in Wyoming
Thermopolis, WY
Hellie's Teepee Pools and Spa
Family hot springs retreat inside Hot Springs State Park with three mineral pools (100-105°F indoors, 94-98°F outdoors), four mineral hot tubs, seasonal water slides, a…
Thermopolis, WY
Fountain of Youth RV Park
RV park built around the Sacajawea Well, which flows 1.3+ million gallons of 128°F mineral water daily into one of the largest all-natural hot mineral pools in the US,…