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Natural Springs

Primitive soaking pools on public land. Often free, some require hikes.

84 Locations Found

Goldbug Hot Springs

Grade SNatural
113°F2mi free

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.

Jerry Johnson Hot Springs

Grade ANatural
115°F1.3mi free

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.

Weir Creek Hot Springs

Grade A-Natural
105°F0.7mi free

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!

Sunbeam Hot Springs

Grade BNatural
169°FDrive-up free

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.

Stanley Hot Springs

Natural
120°F5mi free

Remote hot springs in the Selway-Bitterroot Wilderness accessible via a moderate 5-mile hike. Multiple natural pools in pristine wilderness setting.

Vulcan Hot Springs

Natural
190°F3mi free

VERY HOT natural springs - use extreme caution. Pristine wilderness setting with multiple pools. The source is scalding hot, cooler pools downstream.

Rocky Canyon Hot Springs

Grade ANatural
104°F0.1mi free

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).

Atlanta Hot Springs

Natural
140°FDrive-up free

Hot springs in the remote historic mining town of Atlanta. Multiple pools with views of the surrounding mountains.

Boiling Springs

Natural
185°F2mi free

Very hot backcountry springs with multiple primitive pools. Source is extremely hot - be very careful. Remote wilderness setting.

Pine Flat Hot Springs

Natural
138°FDrive-up free

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.

Bonneville Hot Springs

Grade B+Natural
185°F0.5mi free

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!

Sacajawea Hot Springs

Grade BNatural
153°F0.5mi free

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.

Council Mountain Hot Springs

Natural
154°F1mi free

Natural hot springs in western Idaho near Council. Rock-lined pools with nice mountain views.

Trail Creek Hot Springs

Grade A+Natural
122°F0.5mi free

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.

Loftus Hot Springs

Natural
129°F0.5mi free

Clothing-optional natural springs with nice rock pools. Known for its relaxed atmosphere and mountain setting.

Russian John Hot Springs

Natural
100°FDrive-up free

Natural springs near Ketchum with a comfortable soaking temperature. Easy roadside access in the Sawtooth NRA.

Skillern Hot Springs

Natural
140°F3mi free

Backcountry hot springs with multiple pools in a scenic mountain setting. Moderate hike required.

Teapot Hot Springs

Natural
142°F4mi free

Remote backcountry hot springs requiring a moderate hike. Beautiful wilderness setting with natural pools.

Dash Creek Hot Springs

Natural
138°F2mi free

Natural backcountry springs in the Boise National Forest. Multiple pools in a remote setting.

Barth Hot Springs

Natural
140°F1mi free

Natural hot springs with rock pools along a creek. Moderate hike in a scenic mountain setting.

Sharkey Hot Springs

Natural
126°FDrive-up free

Natural hot springs near Salmon with easy road access. Rock-lined pools with good soaking temperatures.

Ninemeyer Hot Springs

Natural
169°FDrive-up free

Very hot natural springs with multiple pools at varying temperatures. Easy roadside access near Middle Fork Road.

Smith Cabin Hot Springs

Natural
138°F0.5mi free

Natural springs with rock pools and nice views. Short walk from the road.

Sheep Creek Bridge Hot Springs

Natural
142°FDrive-up free

Natural hot springs near the road with good soaking pools. Popular with locals and travelers.

Dutch Frank Hot Springs

Natural
149°F1mi free

Natural hot springs with multiple pools in the Atlanta area. Moderate hike to reach the springs.

Granite Creek Hot Springs

Natural
131°F1.5mi free

Beautiful natural springs with rock pools in a forested setting. Moderate hike required.

Brown Creek Hot Springs

Natural
122°F2mi free

Backcountry hot springs requiring a moderate hike. Nice natural setting with multiple pools.

Magic Hot Springs

Natural
163°FDrive-up free

Hot natural springs near Bellevue with roadside access. Very hot source temperature.

Worswick Hot Springs

Natural
180°FDrive-up free

Very hot natural springs - use extreme caution. Multiple pools with impressive thermal features.

Deer Hot Springs

Natural
176°FDrive-up free

Very hot natural springs near Banks. Use caution with the high temperatures.

Holdover Hot Springs

Natural
117°F3mi free

Remote backcountry hot springs with comfortable soaking temperatures. Nice wilderness setting.

Kwiskwis Hot Springs

Natural
156°F5mi free

Remote wilderness hot springs accessible only by a long hike. Very hot source temperature.

Indian Creek Hot Springs

Natural
190°F6mi free

EXTREMELY HOT - use extreme caution. Remote wilderness springs requiring significant hiking effort.

Middle Fork Indian Creek Hot Springs

Natural
162°F5mi free

Remote backcountry springs accessible by a long hike. Very hot temperatures.

Mollys Hot Springs

Natural
138°F2mi free

Natural springs in the Warm Lake area with rock-lined pools. Moderate hike.

South Fork Plunge

Natural
129°FDrive-up free

Natural hot springs with easy access in the Warm Lake area. Nice rock pools.

Upper Loon Creek Hot Springs

Natural
145°F8mi free

Remote backcountry springs requiring a long hike. Pristine wilderness setting in the Frank Church.

Shower Bath Springs

Grade ANatural
122°F6mi free

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.

Dagger Creek Hot Springs

Natural
110°F4mi free

Backcountry hot springs with moderate temperatures perfect for soaking. Nice wilderness setting.

Lower Bowery Hot Springs

Natural
129°FDrive-up free

Natural springs near the Sawtooth Mountains with easy access. Multiple rock pools.

West Pass Hot Springs

Natural
124°FDrive-up free

Natural hot springs with roadside access in the Sawtooth area.

Easley Hot Springs

Natural
100°FDrive-up free

Natural springs with comfortable temperatures near Ketchum. Easy roadside access.

Warfield Hot Springs

Natural
124°FDrive-up free

Natural springs near Ketchum with rock-lined pools.

Lightfoot Hot Springs

Natural
133°F2mi free

Natural backcountry springs with good soaking temperatures. Moderate hike required.

Preis Hot Springs

Natural
106°F1mi free

Natural springs with comfortable temperatures. Short hike to reach.

Paradise Hot Springs

Natural
126°FDrive-up free

Natural springs near Featherville with roadside access.

Bridge Hot Springs

Natural
138°FDrive-up free

Natural springs near Featherville with easy access.

Willow Creek Hot Springs

Natural
131°FDrive-up free

Natural springs with roadside access near Cayuse Point.

Twin Springs

Natural
151°FDrive-up free

Natural springs with very hot temperatures. Multiple pools available.

Rattlesnake Hot Springs

Natural
133°F2mi free

Natural springs requiring a moderate hike. Named for the local wildlife - be aware.

Coyote Hot Springs

Natural
135°F0mi free

Natural springs accessible by 4WD road. Hot soaking pools in a remote setting.

Roystone Hot Springs

Grade B+Natural
151°FDrive-up $10 reservation

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.

Indian Bathtub Hot Springs

Natural
99°F0mi free

Natural springs in the Bruneau Desert with comfortable temperatures. 4WD access required.

Lower Indian Bathtub Hot Springs

Natural
108°F0mi free

Natural springs near Indian Bathtub with slightly hotter temperatures.

Bruneau Hot Springs

Natural
106°F0mi free

Natural springs in the Bruneau Desert area. Primitive setting with hot pools.

Murphy Hot Springs

Natural
126°FDrive-up free

Remote natural springs in southwestern Idaho with rock pools.

Lidy Hot Springs

Natural
124°FDrive-up free

Natural springs in eastern Idaho with rock-lined pools.

Condie Hot Springs

Natural
124°FDrive-up free

Natural springs in the Lost River Range area.

Milford Sweat Hot Springs

Natural
111°FDrive-up free

Natural springs with comfortable soaking temperatures.

Stanley Hot Spring

Natural
106°FDrive-up free

Natural springs near Stanley with easy roadside access. Comfortable soaking temperature.

Slate Creek Hot Springs

Natural
122°F2mi free

Natural backcountry springs requiring a moderate hike. Nice rock pools.

Robinson Bar Hot Springs

Natural
131°FDrive-up free

Natural springs along the Salmon River with rock-lined pools. Historic site.

Elkhorn Hot Springs

Natural
136°F1mi free

Natural springs near Stanley with good soaking temperatures. Short hike required.

Basin Creek Hot Springs

Grade C+Natural
133°F2mi free

Single major pool near the river. Often extremely hot.

💡 Warning: Can be unbearably hot. Best visited in winter or high water.

White Licks Hot Springs

Natural
140°FDrive-up free

Natural springs near Cascade with hot temperatures and easy access.

Cabarton Hot Springs

Natural
160°FDrive-up free

Very hot natural springs near Smith's Ferry. Use caution with high temperatures.

Belvidere Hot Springs

Natural
111°FDrive-up free

Natural springs with comfortable soaking temperatures near Smith's Ferry.

Starkey Hot Springs

Natural
131°FDrive-up free

Natural springs near New Meadows with good soaking temperatures.

Krigbaum Hot Springs

Natural
109°FDrive-up free

Natural springs near Meadows with comfortable temperatures.

Big Creek Hot Springs

Natural
199°F8mi free

EXTREMELY HOT - use extreme caution. Remote wilderness springs in the Frank Church. Long hike required.

Owl Creek Hot Springs

Natural
122°F6mi free

Remote backcountry springs in the Frank Church Wilderness. Long hike required.

Horse Creek Hot Springs

Natural
109°F5mi free

Backcountry springs requiring a moderate hike. Nice wilderness setting.

Secesh Hot Springs

Natural
110°F3mi free

Natural springs near McCall with comfortable soaking temperatures. Moderate hike.

Sheep Creek Hot Springs

Natural
136°F2mi free

Natural springs with hot temperatures. Moderate hike to reach.

Cow Flats Hot Springs

Natural
138°F2mi free

Natural springs with hot temperatures and nice views.

Colgate Warm Springs

Natural
106°F2mi free

Natural springs near the Lochsa River with moderate temperatures.

Prospector Hot Springs

Natural
110°F4mi free

Remote backcountry springs in northern Idaho. Long hike required.

Stuart Hot Springs

Natural
110°F3mi free

Natural springs in the Clearwater area. Moderate hike required.

Marten Hot Springs

Natural
110°F4mi free

Remote hot springs in the Clearwater National Forest. Long hike required.

Running Warm Springs

Natural
106°F5mi free

Remote wilderness springs in northern Idaho. Extended hike required.

Snowshoe Johnson Hot Springs

Natural
108°F4mi free

Remote backcountry springs accessible via a moderate hike. Named after historic figure.

Marten Creek Hot Springs

Grade BNatural
110°F5mi free

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.

Boat Box Hot Springs

Grade ANatural
110°FDrive-up free

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!

Mile-16 Hot Springs

Grade B-Natural
104°FDrive-up free

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).

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