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About Our Site - Hot Springs State Park
 

Over colorful terraces along the Big Horn River at Thermopolis flows water from mineral hot springs. More than 1.8 million gallons flow over the terrace every 24 hours at a constant temperature of 128 degrees Fahrenheit. The park has a free bath house where the water is maintained at 104 degrees for therapeutic bathing. Hot Springs has 6.2 miles of universally accessible trails and hiking trails. It is a full-service park with comfort stations, a volksmarch trail, fishing, and a boat ramp. One of the reservable group picnic shelters is located here. Hot Springs is a day-use park.

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The Hot Springs State Park bison herd is the central herd for the Wyoming State Parks. During the late fall and winter months, the park bison are fed a daily supplement to insure good health. This feeding usually occurs at 8:30 a.m., giving the off-season visitor the unique opportunity to view the "Monarch of the Plains," up close. Please remember that bison should be viewed ONLY while you remain in your vehicle.

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The suspension foot bridge across the Bighorn River is commonly called "The Swinging Bridge." The bridge offers a unique vantage point from which to view the Bighorn River and mineral terrace. Hot Springs State Park has long been known for its beautiful summer flower gardens. Make a point to bring your camera with you and capture the exciting splash of color all summer long.

There are three large group picnic shelters in the park available by reservation. These are very popular and heavily used. Contact park headquarters as soon as you can to reserve a shelter for your event and also, inquire if your group needs a park liquor permit.

Boardwalk Replacement Project to Begin at Hot Springs State Park

THERMOPOLIS, Wyo. – May 7, 2026 – Construction on the boardwalk at Hot Springs State Park is scheduled to begin the week of May 11, with work expected to continue through late August.


The project will involve a full replacement of the existing boardwalk, which is approximately 25 years old. Over time, the structure has begun to deteriorate, reducing water flow across the park’s iconic mineral terraces.


For the safety of visitors and to allow for efficient construction, the boardwalk will be closed to the public for the duration of the project. Visitors are encouraged to follow all posted signage and respect closure areas while work is underway.


“This project is an important investment in preserving both visitor access and the natural features that make Hot Springs State Park unique,” said Chris Delay, superintendent of Hot Springs State Park. “We appreciate the public’s patience as we complete these necessary improvements.”


Hot Springs State Park remains open during construction, and visitors are encouraged to continue enjoying the park’s many amenities. Nestled along the Big Horn River, the park offers a wide range of recreational opportunities, including viewing the resident bison herd, relaxing in the State Bath House’s mineral waters, picnicking in designated areas, and accessing the river for fishing and other water activities.


The park features more than 6 miles of trails, allowing visitors to explore the surrounding landscape. Seasonal programs and interpretive offerings are also available throughout the year.


The park’s mineral hot springs produce more than 3 million gallons of water daily, maintaining a constant temperature of 128 degrees Fahrenheit. The free State Bath House offers therapeutic soaking at a comfortable 104 degrees and is open year-round. Starting May 15, the Bath House hours will be Monday-Saturday from 8 a.m. - 7 p.m., and Sundays from noon - 7 p.m. 


Hot Springs State Park remains a vibrant destination for both relaxation and outdoor recreation, and Wyoming State Parks encourages visitors to explore all areas that remain accessible during construction.


For more information, please visit the Wyoming State Parks website at wyoparks.wyo.gov.

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Figure 1: Views of the Big Horn River and Mineral Terraces at Hot Springs State Park. 

Contact: Chris Delay, (307) 864-2176; This email address is being protected from spambots. You need JavaScript enabled to view it. 

 

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Site Status
 

Attention:

Winter Bath House Hours
Monday - Saturday:
8 a.m. - 5:30 p.m.

Sundays: Noon - 5:30 p.m.
 

Hot Springs State Park is a day-use park with no overnight camping. Picnic shelters, bath house, and the grounds are open.
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Hours
 

Bath House Winter Hours:  

  • Mon. - Sat. 8 a.m. to 5:30 p.m.
  • Sun. 12 p.m. to 5:30 p.m.

Grounds:

  • 6 a.m. to 10 p.m.

Season:

  • Open year-round
  • Bath House closed on Thanksgiving & Christmas Day

 

Map

Phone Number
 

307-864-2176

 
Map

 Location
 

 Hot Springs State Park
 51 US Highway 20 North
 Thermopolis, WY 82443

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