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Primitive soaking pools on public land. Often free, some require hikes.
One of Idaho's most iconic hot springs featuring stunning travertine terraces. A huge waterfall cascades down the mountain creating multiple soaking pools; higher pools are warmer. Access requires a steep 2-mile hike.
💡 Respect Private Property: The first 1/4 mile passes through an easement; dogs must be leashed here. The waterfall creates a mist that feels incredible in summer. Get there at sunrise to beat the crowds.
One of Idaho's most popular natural hot springs featuring three distinct sources. Source 1 (Waterfall Pools) is often submerged during spring runoff. Source 2 offers riverside soaking, and Source 3 is located in a scenic meadow.
💡 The 'glitter' in the water is suspended sulfur (great for skin!). Source 1 is best late summer. Hike is easy but can be icy in winter (bring traction). Clothing optional and very popular.
A picturesque, rock-walled pool perched on a cliff overlooking Weir Creek. Surrounded by cedars, this primitive soak is beautiful but can get crowded. A second, cooler pool sits by the creek.
💡 MP 142. The hike is short (0.7 mi) but has steep/slick sections. Main pool fits ~10 people. Please pack out all trash - heavy usage has led to trash issues. No glass!
Roadside hot springs along the Salmon River. Features rock-lined pools and large tubs that you manually fill and mix.
💡 Look for the hose and bucket! Use them to mix freezing river water with the scalding source water to get the perfect temp in the roadside tubs.
Remote hot springs in the Selway-Bitterroot Wilderness accessible via a moderate 5-mile hike. Multiple natural pools in pristine wilderness setting.
VERY HOT natural springs - use extreme caution. Pristine wilderness setting with multiple pools. The source is scalding hot, cooler pools downstream.
A stunning series of tiered rock-and-mortar pools cascading down the hillside across the Middle Fork Payette River. Requires fording the river to access.
💡 Crossing the river is mandatory (cold/swift). Bring water shoes. Upper pools are hottest (~100°F). Do not attempt crossing during high water (Spring).
Hot springs in the remote historic mining town of Atlanta. Multiple pools with views of the surrounding mountains.
Very hot backcountry springs with multiple primitive pools. Source is extremely hot - be very careful. Remote wilderness setting.
Natural hot springs near Lowman with rock-lined soaking pools. Easy access from the road.
💡 Cliffside pools and a hot waterfall! Upper pools are hotter (source ~115°F), lower pools mix with the river. Middle pool is best.
Very hot natural springs. A source steaming at near-boiling (185°F) flows into a creekside soaking pool via a pipe.
💡 Water is slightly alkaline (pH ~8.0). Source is SCALDING (185°F) - be careful mixing!
Natural hot springs near Grandjean with views of the Sawtooth Mountains. Multiple pools along the creek.
💡 pH ~8 (Slightly Alkaline). River rock pools often require rebuilding after spring runoff.
Natural hot springs in western Idaho near Council. Rock-lined pools with nice mountain views.
Natural hot springs in the Warm Lake area with primitive rock pools. Short hike from the trailhead.
💡 You can control the temperature! There's a tube piping cold river water into the hot spring that you can adjust. Also features comfortable submerged rocks for seating.
Clothing-optional natural springs with nice rock pools. Known for its relaxed atmosphere and mountain setting.
Natural springs near Ketchum with a comfortable soaking temperature. Easy roadside access in the Sawtooth NRA.
Backcountry hot springs with multiple pools in a scenic mountain setting. Moderate hike required.
Remote backcountry hot springs requiring a moderate hike. Beautiful wilderness setting with natural pools.
Natural backcountry springs in the Boise National Forest. Multiple pools in a remote setting.
Natural hot springs with rock pools along a creek. Moderate hike in a scenic mountain setting.
Natural hot springs near Salmon with easy road access. Rock-lined pools with good soaking temperatures.
Very hot natural springs with multiple pools at varying temperatures. Easy roadside access near Middle Fork Road.
Natural springs with rock pools and nice views. Short walk from the road.
Natural hot springs near the road with good soaking pools. Popular with locals and travelers.
Natural hot springs with multiple pools in the Atlanta area. Moderate hike to reach the springs.
Beautiful natural springs with rock pools in a forested setting. Moderate hike required.
Backcountry hot springs requiring a moderate hike. Nice natural setting with multiple pools.
Hot natural springs near Bellevue with roadside access. Very hot source temperature.
Very hot natural springs - use extreme caution. Multiple pools with impressive thermal features.
Very hot natural springs near Banks. Use caution with the high temperatures.
Remote backcountry hot springs with comfortable soaking temperatures. Nice wilderness setting.
Remote wilderness hot springs accessible only by a long hike. Very hot source temperature.
EXTREMELY HOT - use extreme caution. Remote wilderness springs requiring significant hiking effort.
Remote backcountry springs accessible by a long hike. Very hot temperatures.
Natural springs in the Warm Lake area with rock-lined pools. Moderate hike.
Natural hot springs with easy access in the Warm Lake area. Nice rock pools.
Remote backcountry springs requiring a long hike. Pristine wilderness setting in the Frank Church.
A unique hot spring shower flows over a rock alcove into a pool. Several small pools in a cliffside grotto.
💡 Remote access only (boat or long hike). Best in summer.
Backcountry hot springs with moderate temperatures perfect for soaking. Nice wilderness setting.
Natural springs near the Sawtooth Mountains with easy access. Multiple rock pools.
Natural hot springs with roadside access in the Sawtooth area.
Natural springs with comfortable temperatures near Ketchum. Easy roadside access.
Natural springs near Ketchum with rock-lined pools.
Natural backcountry springs with good soaking temperatures. Moderate hike required.
Natural springs with comfortable temperatures. Short hike to reach.
Natural springs near Featherville with roadside access.
Natural springs near Featherville with easy access.
Natural springs with roadside access near Cayuse Point.
Natural springs with very hot temperatures. Multiple pools available.
Natural springs requiring a moderate hike. Named for the local wildlife - be aware.
Natural springs accessible by 4WD road. Hot soaking pools in a remote setting.
Historic hot springs in Sweet featuring a large natural pool (93-98°F) and a hot 104°F natural hot tub. Limited admission ensures privacy.
💡 Reserve a session after dark to watch movies from the hot tub on the outdoor projector! Source temp is 143°F.
Natural springs in the Bruneau Desert with comfortable temperatures. 4WD access required.
Natural springs near Indian Bathtub with slightly hotter temperatures.
Natural springs in the Bruneau Desert area. Primitive setting with hot pools.
Remote natural springs in southwestern Idaho with rock pools.
Natural springs in eastern Idaho with rock-lined pools.
Natural springs in the Lost River Range area.
Natural springs with comfortable soaking temperatures.
Natural springs near Stanley with easy roadside access. Comfortable soaking temperature.
Natural backcountry springs requiring a moderate hike. Nice rock pools.
Natural springs along the Salmon River with rock-lined pools. Historic site.
Natural springs near Stanley with good soaking temperatures. Short hike required.
Single major pool near the river. Often extremely hot.
💡 Warning: Can be unbearably hot. Best visited in winter or high water.
Natural springs near Cascade with hot temperatures and easy access.
Very hot natural springs near Smith's Ferry. Use caution with high temperatures.
Natural springs with comfortable soaking temperatures near Smith's Ferry.
Natural springs near New Meadows with good soaking temperatures.
Natural springs near Meadows with comfortable temperatures.
EXTREMELY HOT - use extreme caution. Remote wilderness springs in the Frank Church. Long hike required.
Remote backcountry springs in the Frank Church Wilderness. Long hike required.
Backcountry springs requiring a moderate hike. Nice wilderness setting.
Natural springs near McCall with comfortable soaking temperatures. Moderate hike.
Natural springs with hot temperatures. Moderate hike to reach.
Natural springs with hot temperatures and nice views.
Natural springs near the Lochsa River with moderate temperatures.
Remote backcountry springs in northern Idaho. Long hike required.
Natural springs in the Clearwater area. Moderate hike required.
Remote hot springs in the Clearwater National Forest. Long hike required.
Remote wilderness springs in northern Idaho. Extended hike required.
Remote backcountry springs accessible via a moderate hike. Named after historic figure.
Elusive hot spring that bubbles out of rocks into a seasonal creek. Requires a difficult multi-day adventure to reach.
💡 Hard to find multiday adventure. No known primitive sites nearby, so camp carefully.
A single rustic metal cauldron tub on the river’s edge, fed by a hot spring pipe. Fits 2–4 people. You mix cold river water to adjust temperature.
💡 Very popular photo spot; often a wait to use the tub. Go early morning!
Small roadside hot spring with a sandy-bottom 2–4 person pool alongside Warm Lake Road. Often maintained with tarps.
💡 pH ~7.0. Space is limited (just one main pool).