Hot Springs State Park
State park
4.7 (2242)
51 US-20, Thermopolis, WY 82443
8,000 gallons flow daily from the hot spring feeding a free bathhouse at this park known for bison.
Barbecue grillCycling lanesPicnic tablesPublic restroom
Managed Mineral-Water Soaking Pools At The State Bath HouseWY
Hot Springs State Park
By Hidden Swimming Holes Team · Record updated
Background: generated illustration, not a photograph of this location.
Plan a State Bath House soak in Thermopolis. Check free admission, published hours, outdoor-pool construction updates and park access before visiting.
Water type
Managed Mineral-Water Soaking Pools At The State Bath House
Access
Official
Fee
State Bath House soaking is free; other pool businesses have separate admission arrangements.
Best season
Plan around confirmed Bath House hours and current construction status. Holiday and winter schedules should be checked by phone
Nearby towns
Thermopolis
Water body
Hot Springs
Location
Map & Directions
Nearby towns
Thermopolis
Approximate town location
THERMOPOLIS, WY
Approximate location based on the nearest town. Confirm the exact spot and access before you go.
A closer look
Photos of Hot Springs State Park
Photos show past visits, not current water levels or swimming conditions. Select a photo to view it larger.
Sources & checks
This is a desk-researched listing. A record update or map check does not confirm current swimming permission or water conditions.
- Swimming rules
- Official sources checked . See the rules above and check for current closures.
- Approximate town location
- The map represents a nearby town, not an entrance or swimming spot.
- Record updated
- · This is a data update, not a field visit.
Found an error? Send a correction with the location and a source. How we research listings.
Hot Springs State Park: the State Bath House
For a free mineral-water soak in Thermopolis, look for the State Bath House within Hot Springs State Park. This is a managed bathing facility, not an invitation to enter the spring source, mineral terraces or Bighorn River. Other pool businesses have their own admission arrangements and operating status.
Outdoor pool construction: confirm before visiting
Wyoming State Parks announced an outdoor soaking-pool closure starting August 24, 2026, with work expected to last about a month. The notice said the indoor pool would remain available during construction. On our October 5 review, the official park page still displayed the August 24 to September 24 closure notice. We did not find an explicit reopening confirmation in the pages checked. Call 307-864-2176 before making a trip specifically for the outdoor pool; an expected completion date is not proof that work is finished.
Bath House hours and fees
The State Bath House is free. A February 2025 announcement extended its schedule to 8 a.m. to 7 p.m. Monday through Saturday and noon to 7 p.m. Sunday. The August 2026 construction notice repeats those hours, although an older winter-hours panel still lists a 5:30 p.m. closing time. Confirm your intended visit time by phone, particularly in winter or on holidays. Park grounds hours are not the same as pool hours.
Finding the right facility
Reach Thermopolis via US-20 and follow signs for Hot Springs State Park, then the State Bath House. The official park contact address is 51 US Highway 20 North; that address and the general park map point should not be treated as a verified pool entrance. Use designated parking and check for construction detours.
A soak and a day in the park
The park is day-use only, with trails, picnic areas and restrooms. View mineral terraces from designated routes. The park asks visitors watching its bison to remain in their vehicles. Pool temperatures are managed separately from the much hotter spring source, so photographs of steaming water do not identify a bathing area.
Bring swimwear, a towel and drinking water. Ask staff about session limits and any assistance you need. Accessibility improvements were announced for the outdoor pool, but this guide does not certify that the new equipment is installed or available.
Sources: official park information, 2026 pool project notice, and extended Bath House hours. Desk reviewed October 5, 2026; not an onsite inspection.
Getting There
In Thermopolis, follow US-20 to signs for Hot Springs State Park, then follow State Bath House signs. The official park contact address is 51 US Highway 20 North, Thermopolis, WY 82443; this is not a verified pool-entrance coordinate. Use designated parking and check current construction notices.
Quick Navigation
Access Notes
The August 2026 notice said the indoor pool would remain open during outdoor-pool construction. As of the October 5 desk review, an explicit outdoor reopening confirmation was not found. Call 307-864-2176.
Plan Your Visit
Parking & Access
Confirm the entrance, parking arrangements, and legal access with the land manager. A map pin does not establish a public right of access. Follow posted routes and never block gates or driveways.
Regulations & Fees
Current swimming permission has not been independently confirmed for this listing. Check official rules, fees, hours, and closures before visiting. Public park access does not necessarily include permission to swim. Respect private property and posted restrictions.
Seasonality & Flow
Water conditions can change quickly. This listing does not provide a current safety or water-quality assessment. Check official alerts and avoid entering water when conditions or permission are uncertain.
What to Bring
Bring sturdy water shoes to protect your feet on rocks and slippery surfaces. A waterproof dry bag keeps your phone, keys, and valuables safe. Pack a quick-dry towel, sun protection, and drinking water - never drink from the natural water source.
Nearby Facilities
Nearby places from saved public map data, not necessarily facilities at the swimming spot. Confirm access, hours, fees, and amenities with the operator before you drive.
Map data retrieved 2026-06-15
Vault toilets
Public bathroom
3 (2)
Wind River Reservation, Shoshoni, WY 82649
Jim Moss Arena Campground
Campground
4.7 (72)
500 8 Mile Rd, Riverton, WY 82501
Public restroomPublic showerRestroomRunning water
Vault toilet
Public bathroom
5 (1)
59GP+H2, Riverton, WY 82501
Bee Road Rails to Trails Trailhead
Hiking area
4.2 (10)
Riverton, WY 82501
Trail by kimbos
Hiking area
170 Haymaker Rd, Riverton, WY 82501
Trailhead Restaurant
Family restaurant
4.2 (1245)
831 N Federal Blvd, Riverton, WY 82501
Restroom
Wind River RV Park
Campground
3.9 (169)
1618 E Park Ave, Riverton, WY 82501
Barbecue grillPicnic tablesPublic restroomPublic shower
Frequently Asked Questions About Hot Springs State Park
Is Hot Springs State Park free to visit?
Reported fee information: State Bath House soaking is free; other pool businesses have separate admission arrangements. Verify current pricing with the managing agency before your visit.
Is swimming allowed at Hot Springs State Park?
Current swimming permission has not been independently confirmed for Hot Springs State Park. Public park access does not necessarily include permission to swim. Check with the land manager and follow posted restrictions.
What type of swimming spot is Hot Springs State Park?
Hot Springs State Park is a managed mineral-water soaking pools at the state bath house on Hot Springs located in Wyoming, near Thermopolis. Plan a State Bath House soak in Thermopolis. Check free admission, published hours, outdoor-pool construction updates and park access before visiting.
When is the best time to visit Hot Springs State Park?
Seasonal planning notes: Plan around confirmed Bath House hours and current construction status. Holiday and winter schedules should be checked by phone. Water levels, clarity, and temperature vary with recent weather. Check current conditions before going, especially after rain or snowmelt.
What facilities are available at Hot Springs State Park?
Reported facilities at Hot Springs State Park include: The State Bath House is separate from other pool operations. Park restrooms, trails and picnic areas are listed by Wyoming State Parks. Confirm pool access arrangements directly. Amenities can change - contact the managing agency or check recent visitor reports to confirm current availability.
Is camping available near Hot Springs State Park?
No camping at site - day use park only.
Highlights
Free State Bath House soaking
Outdoor-pool reopening needs confirmation
Mineral terraces viewed from designated paths
Day-use park in Thermopolis
Unique Features
Managed mineral-water Bath House
Mineral terraces beside the Bighorn River
Park trails and picnic areas
Location & Area Map
Safety Information
Important Safety Tips
- Use only designated bathing facilities and follow staff instructions
- Keep away from the spring source and mineral formations
- Confirm outdoor-pool availability before departure
- Bring drinking water rather than treating spring water as a drinking supply
Cultural & Historical Context
Historical Background
Use the park interpretive material to learn about the springs and their history.
Photography Guide
Photo Opportunities
Park scenery includes the mineral terraces and Bighorn River. These features are not bathing-pool locations.
Conservation & Ethics
Protect This Place
Stay on designated paths around mineral formations. Observe park bison from inside your vehicle and respect construction barriers.
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At a Glance
Best Time to Visit
Plan around confirmed Bath House hours and current construction status. Holiday and winter schedules should be checked by phone.
Difficulty Level
Developed park access; confirm the pool entrance, construction detours and any accessibility assistance needed.
Fee
State Bath House soaking is free; other pool businesses have separate admission arrangements.
Facilities
The State Bath House is separate from other pool operations. Park restrooms, trails and picnic areas are listed by Wyoming State Parks. Confirm pool access arrangements directly.
Activities
Hot Soaking
Phone
307-864-2176
Safety & Access Notice
This information is for general planning only and may be incomplete, outdated, or inaccurate. Access rules, closures, water levels, currents, hazards, and legal restrictions can change at any time. Always verify current rules with the land manager or official source before visiting.
You are responsible for your own safety and for following all posted signs, laws, and local regulations. Read the full disclaimer.
Camping Information
No camping at site - day use park only.
Nearby Attractions
- Thermopolis - Town
- Mineral terraces - Park scenery
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Safety & Access Notice
This information is for general planning only and may be incomplete, outdated, or inaccurate. Access rules, closures, water levels, currents, hazards, and legal restrictions can change at any time. Always verify current rules with the land manager or official source before visiting.
- Do not swim where swimming is prohibited, unsafe, or not clearly allowed.
- Follow posted signs, local regulations, closures, and private-property boundaries.
- Assess conditions on site. Water flow, depth, temperature, and underwater hazards change quickly.
- Never jump or dive without personally confirming depth and underwater obstacles.
- Swim with a buddy and consider flotation for weak or non-swimmers.
- Pack out all trash; respect wildlife and fragile environments.
You are responsible for your own safety and for following all posted signs, laws, and local regulations. Read the full disclaimer.
J
Joshua Havens
Founder & Editor, Hidden Swimming Holes
Joshua Havens created Hidden Swimming Holes to make it easier for people to find — and safely visit — natural freshwater swimming destinations across the United States. He researches access conditions, water quality resources, and land management rules so you don't have to start from scratch. He holds a strong belief that good outdoor recreation information should be accurate, honest about its limitations, and freely available.
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