Challis Hot Springs Water & Soaking

The hot springs have two pools: the larger one is 100 by 30 feet, and the smaller one is 25 by 18 feet.

Geothermal water bubbles up from underground springs through river rock bottoms at about 127°F (53°C). The temperature in the larger pool varies seasonally (on average, 96°F (35°C) in summer and 98–100°F (37-38°C) in winter). The temperature in the smaller pool tends to stay at approximately 105°F (41°C) year-round.

Pool temperatures can be adjusted manually by adding cold artesian water. Enter the pools cautiously.

Both pools use a flow-through system, where fresh water constantly replaces the old, eliminating the need for chemical treatment. The odorless, naturally soothing water provides a clean and relaxing soak.

Before European settlers arrived, this fertile land was frequented by Indigenous peoples. They hunted, fished, and gathered in these fertile lands.

The first Europeans came in 1822, when a group of fur trappers led by Michel Bourdon explored the region in search of beaver pelts. Later, in 1880, homesteader Robert Currie Beardsley became the first permanent settler. He claimed 40 acres of land, including the

water rights, and developed the property with a sawmill, a hotel, a barn, and a house. He also improved the hot spring to make it more accessible and comfortable for visitors.

Over the years, the property changed hands many times. Still, the reputation of the healing geothermal mineral water has remained intact, along with each owner’s commitment to welcoming guests seeking rest and relaxation.

In 2023, the Idaho Department of Parks and Recreation purchased the site. The hot springs became part of the Land of the Yankee Fork State Park. This, in turn, ensured that the hot springs and the campground would be preserved and remain open to the public.

Beyond soaking, visitors can explore ATV trails, hike, fish for trout and steelhead, kayak, or raft the Salmon River.

The area is also home to numerous other hot springs, including Cronks Canyon Hot Springs to the north and Sunbeam and Boat Box Hot Springs to the east, each offering unique soaking experiences.

The region offers excellent rockhounding opportunities for geology and rock enthusiasts. There is a good chance of finding interesting minerals, agates, and fossils in the river valleys and surrounding hills.

If relaxation is your sole purpose here, you can take in the natural beauty of Round Valley, enjoy the mountains, and watch wildlife along the river.

The Challis Hot Springs Campground, now part of Idaho State Parks, offers tent and RV sites along the Salmon River.

Camping reservations are typically handled through the Idaho Department of Parks and Recreation. Such reservations are available from mid-March through November. Amenities include full or partial hookups, grassy tent spaces, restrooms, and showers. Overnight guests receive discounted access to the soaking pools.

If you prefer other types of accommodations, you can find hotels and vacation rentals in Challis.

Lodging In Challis

Affordable vacation rentals for short- and long-term stays in Challis

Location: 9 miles east of Challis • Idaho • USA
Open: Year-round except Thanksgiving and Christmas Day
Development: A large warm swimming pool and a small hot soaking pool
Clothing: Required
Amenities: Changing rooms, shower, picnic tables, a boat access

Hiking distance: Short
Road Access: Any vehicle
Day-use fees: Yes
Managed by: Idaho Department of Parks and Recreation

Elevation: 5,000 ft (1,524 m)

Water T° (source): 127°F (53°C)
Water T° (swimming pool): 96-100°F (35-38°C)
Water T° (soaking pool): 105°F (41°C)
Chemical used: None