Snowshoe Johnsons Hot Spring

Custer County, Idaho · Near Challis
45.0420°N, 114.6160°W · 5,472 ft
108°F 39°F air · Good soaking weather 5,472 ft Open Hike US Forest Service Camping nearby (7.3 mi)
Aerial view of the ground around Snowshoe Johnsons Hot Spring LiDAR bare-earth view of the same ground around Snowshoe Johnsons Hot Spring
Aerial LiDAR bare earth

Drag the handle to compare the two views. The orange dot marks the spring, in a frame about three quarters of a mile wide.

Snowshoe Johnsons Hot Spring takes some walking to reach. It sits in the Salmon National Forest, Custer County, more than forty miles from Challis. Hot, a notch past soaking range, and entry is open to all. No chemistry on file, and the USGS has no site number for it, so the temperature reading stands alone.

Location

Hoodoo Meadows Road is where the walking starts, close to three miles out. Middling elevation, on Forest Service ground. Snow runs over nine feet a winter, with middling precipitation and a yearly average in the low forties.

Yellowjacket Guard Station, about seven miles off, is the closest camp anyone has noted. The best window falls in winter. With nine feet of snow and three miles on foot, that is a committing trip, so find out if Hoodoo Meadows Road opens in winter before you plan around it. No chemistry has been done, so temperature is all you know about the water going in.

Terrain

Aircraft with laser scanners measured this ground to within inches. The scan strips out trees and buildings, leaving the bare shape of the land around Snowshoe Johnsons Hot Spring.

Setting
Canyon floor
Steep ground climbs away on both sides of the spring.
Highest ground nearby
789 ft above the spring
Within a quarter mile, to the southeast
Cross-section through the spring

A slice through the ground from north to south, about 0.6 miles end to end.

Elevation data: USGS 3D Elevation Program. Aerial imagery: USGS The National Map. Public domain.

Heat Below
112 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 63% of the springs on this site.

Heat flow measures the warmth working its way up through the ground from deep inside the earth. Where it runs high, rain and snowmelt that seep down through cracks in the rock come back up hot.

Heat flow estimate: Stanford Thermal Earth Model (Aljubran & Horne, 2024), CC BY 4.0.

Monthly Climate
23°
Jan
25°
Feb
32°
Mar
37°
Apr
46°
May
57°
Jun
68°
Jul
67°
Aug
57°
Sep
42°
Oct
29°
Nov
20°
Dec
Annual Precip: 24.4 in Annual Snow: 110.5 in
Best Time to Visit
December Air 20°F · Water 108°F · +88° contrast
January Air 23°F · Water 108°F · +85° contrast
February Air 25°F · Water 108°F · +83° contrast
December offers 48°F more contrast than July
Current Conditions
39°F
ESE 0.0 mph 91% Good soaking weather
Today 66° Low 40° Sunny
Spring is +42° warmer
Wednesday 71° Low 45° Sunny
Spring is +37° warmer
Thursday 67° Low 44° Rain then Showers And Thunderstorms 77% precip
Spring is +41° warmer
Friday 63° Low 41° Light Rain Likely then Showers And Thunderstorms Likely 56% precip
Spring is +45° warmer
Saturday 68° Low 43° Sunny 11% precip
Spring is +40° warmer
Nearby Camping
Nearby Camping
Yellowjacket Guard Station 7.3 mi away

Overview Yellowjacket Guard Station is a historic Forest Service Ranger Station and Work Center. Originally constructed in 1925 and remodeled in 1934 by the Civilian Conservation Corps, the structure is eligible for listing on the National Register of Historic Places. Recreation Hikers, horseback riders, mountain bikers and off-road enthusiasts will find many trails in the surrounding area. Hunting is also a popular activity. Click here for an Idaho OHV safety messageFacilities The spacious...

Reservable Yes
Reserve on Recreation.gov →
Mile-High Advisory 5,472 ft

Snowshoe Johnsons Hot Spring sits at 5,472 feet above sea level, way above the mile-high mark. You may not feel the altitude strongly, but hot water still dehydrates you faster at elevation. UV is about 22% stronger than at sea level, so bring sunscreen and drink more water than you normally would.

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Temperature
108°F
Warm Hot Boiling
Water Temp 108°F (42°C)
Avg Air Temp 42°F
Above Ambient +66°F
Great soaking conditions September
Access
Open
Road Access Hike
Nearest Road Hoodoo Meadows Road
Distance to Road 2.7 mi
Land
Ownership Federal
Agency US Forest Service
Designation National Forest
Unit Salmon National Forest
Manager US Forest Service
Protection 3 - Protected, subject to extractive use
Frequently Asked Questions
What is the water temperature at Snowshoe Johnsons Hot Spring?
Snowshoe Johnsons Hot Spring has a water temperature of 108°F (42°C). This is considered a hot spring, well above body temperature.
Where is Snowshoe Johnsons Hot Spring located?
Snowshoe Johnsons Hot Spring is located in Custer County, Idaho at 5,472 feet elevation, near Challis. Coordinates: 45.0420°N, 114.6160°W.
How do I get to Snowshoe Johnsons Hot Spring?
Snowshoe Johnsons Hot Spring has Hike road access, with the nearest road being Hoodoo Meadows Road (2.7 mi from the road).
Is Snowshoe Johnsons Hot Spring free to visit?
Snowshoe Johnsons Hot Spring has Open access. It is managed by US Forest Service.
Can I camp near Snowshoe Johnsons Hot Spring?
Yes, Yellowjacket Guard Station is located nearby (7.3 miles away).