Quick FactsOverview
About Hellie's Tepee Pools
Hellie's Tepee Pools, Wyoming is a paid commercial mineral spring facility at 144 Tepee St inside Hot Springs State Park in Thermopolis, Hot Springs County. The facility draws water from the Big Horn spring at 127 to 131 degrees Fahrenheit, which contains 27 naturally occurring minerals. Inside the teepee-shaped dome is a large indoor pool with a waterfall and slide, hot tubs at approximately 104 degrees, a sauna, and a steam room. Outdoor facilities include a mega-slide, three additional hot tubs, and a grassy picnic area. Pool temperatures range from approximately 94 degrees in the large soaking pool to 104 degrees in the hot tub zones.
The facility opened in 1967 and has operated as a commercial concessionaire within the state park for decades. In late 2023 Hellie's was acquired by Wyoming Hot Springs LLC, selected by Wyoming State Parks to undertake a multi-million dollar reconstruction as part of the 2016 Hot Springs State Park Master Plan. As of early 2026 the facility is operational. Swimsuits are required. Day use only; no overnight accommodations available. Swimsuit and towel rentals are available on site.
Location & Access
Getting to Hellie's Tepee Pools
Hellie's Tepee Pools is located at 144 Tepee St inside Hot Springs State Park in Thermopolis, Wyoming. From central Thermopolis, head north on N 6th Street toward Broadway Street, then continue onto Park Street for approximately 0.2 miles. Take a slight right to stay on Park Street, then turn left onto Pioneer Road, then right onto Tepee Street. The facility is a short distance on the left. The drive from downtown Thermopolis takes approximately 4 minutes. The park is adjacent to the Big Horn River and the distinctive travertine terraces.
Hot Springs State Park is centrally located in Thermopolis and is accessible by any vehicle. Free parking is available throughout the park. The park is open year-round and is the most visited state park in Wyoming. The State Bath House and the Wyoming Dinosaur Center are within the same park area. For those seeking hot springs near Thermopolis Wyoming, Hellie's Tepee Pools offers the most extensive facility in the park, with the widest range of pool types, slides, and amenities. Fountain of Youth RV Park, a second mineral spring facility with the state's largest outdoor pool, is approximately 2 miles north on US-20.
Suitability & Accessibility
Suitability and Accessibility of Hellie's Tepee Pools
Hellie's Tepee Pools suits families, groups, and visitors of all ages seeking a full-featured mineral spring facility with waterslides, hot tubs, and a steam room in a single location. The indoor pool with waterfall and slide is particularly popular with children, and the outdoor mega-slide appeals to older children and adults. The facility is inside the state park and accessible by car with park parking available. A baby pool is available for very young children. The wide range of pool temperatures from approximately 94 degrees in the large soaking pool to 104 degrees in the hot tub zones means visitors can find a comfortable temperature for their needs.
The facility is designed for day use only. Lockers, showers, and changing rooms are provided. Swimsuits are required throughout. Towel and swimsuit rentals are available for visitors who arrive unprepared. No overnight accommodations are on site, but Fountain of Youth RV Park is 2 miles north and several hotels within or adjacent to Hot Springs State Park also offer access to mineral water pools. The snack bar may not operate year-round; check ahead if food service is important.
Hot Springs State Park offers 10 miles of ADA accessible trails and boardwalks connecting the park's various features. For those seeking family hot springs near Thermopolis Wyoming, Hellie's Tepee Pools offers the most complete all-ages mineral water experience in the area, combining the therapeutic benefits of the Big Horn spring water with recreational water features including waterslides.
Safety & Etiquette
Hellie's Tepee Pools Safety Tips
Hellie's Tepee Pools is a staffed facility within Hot Springs State Park. Pool temperatures range from approximately 94 to 104 degrees Fahrenheit. The hot tub zones at 104 degrees are above the standard recommended soaking temperature for extended sessions. Limit time in the hottest sections, stay hydrated, and exit if you feel dizzy. Guests with heart conditions, high blood pressure, or pregnancy should consult a physician before using mineral water at elevated temperatures.
The facility uses no chemical disinfectants, relying on the natural mineral content and flow-through system. The steam room operates at approximately 113 degrees Fahrenheit per visitor reports. Limit time in the steam room, especially if unaccustomed to high-heat environments. Waterslides must be used per posted rules and staff instructions. Children must meet any height or age requirements posted at each slide. No diving is permitted. The outdoor deck areas are slippery when wet.
The Big Horn spring water contains sulfur and 27 minerals. A mild sulfur odor is normal. Rinse off with fresh water after your session if you have sensitive skin. Do not use soap or shampoo in the mineral pools. Follow all posted facility rules and staff instructions throughout your visit.
Hot Springs State Park surrounds the facility and bison herds graze throughout the park grounds. Maintain a safe distance from bison at all times. Bison are unpredictable and can move quickly. Stay on designated walkways when moving between parking, the pools, and other park features.
