Red River Hot Springs

Idaho County, Idaho · Near Grangeville
45.7880°N, 115.1980°W · 5,040 ft
131°F 32°F air · Good soaking weather 5,040 ft Open Roadside US Forest Service Camping nearby (16.7 mi)
Aerial view of the ground around Red River Hot Springs LiDAR bare-earth view of the same ground around Red River Hot Springs
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.

Red River Hot Springs belongs to the Nezperce National Forest in Idaho County, forty-five miles from Grangeville and a short distance off an unnamed road, with access recorded as open. The water runs hot, beyond what most bathers tolerate at the source. The 1982 sample showed iron along with the usual minerals.

Location

High enough for serious snow, fifteen feet in an average winter, in wet country. Roadside access, a few dozen yards from the car, once the road is clear. Walker Cabin is the nearest listed camping, about seventeen miles out. National Forest designation and nothing more specific in the record. How the outlet and its surroundings look never made it into the file.

Midwinter is the listed season. The outlet water will burn bare skin, so find the cooled section before you sit. Walker Cabin is where the record says to sleep. Nothing on a fee. The chemistry is from a single sample four decades old.

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 Red River Hot Springs.

Setting
Hillside
The spring sits on a steep slope that climbs to the east.
Highest ground nearby
377 ft above the spring
Within a quarter mile, to the east
Cross-section through the spring

A slice through the ground from west to east, about 0.6 miles end to end.

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

Heat Below
72 milliwatts per square meter of heat flow

That's close to the US average of 65. It's higher than at 7% 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
24°
Jan
26°
Feb
32°
Mar
37°
Apr
44°
May
55°
Jun
65°
Jul
66°
Aug
56°
Sep
41°
Oct
29°
Nov
21°
Dec
Annual Precip: 40.9 in Annual Snow: 185.2 in
Best Time to Visit
December Air 21°F · Water 131°F · +110° contrast
January Air 24°F · Water 131°F · +107° contrast
February Air 26°F · Water 131°F · +105° contrast
December offers 44°F more contrast than August
Current Conditions
32°F
E 0.0 mph 100% Good soaking weather
Today 67° Low 38° Widespread Frost then Mostly Sunny 1% precip
Spring is +64° warmer
Wednesday 71° Low 41° Sunny
Spring is +60° warmer
Thursday 71° Low 43° Mostly Sunny then Showers And Thunderstorms Likely 59% precip
Spring is +60° warmer
Friday 66° Low 40° Chance Light Rain then Chance Showers And Thunderstorms 50% precip
Spring is +65° warmer
Saturday 72° Low 42° Sunny 5% precip
Spring is +59° warmer
Water Chemistry Sampled 1982-07-13

The water at Red River Hot Springs is alkaline (pH 9.4) with 274 mg/L total dissolved solids.

pH 9.4 Alkaline
pH influences mineral absorption through skin
Higher mineral concentration for therapeutic soaking
Calcium 2 mg/L
May support bone density and joint health
Magnesium 0 mg/L
Known for muscle relaxation and stress relief
Sodium 79 mg/L
Supports circulation and skin hydration
Sulfate 37 mg/L
Traditionally used for skin conditions and inflammation
Chloride 4 mg/L
Natural antiseptic with skin health benefits
Iron 0 µg/L
Iron-rich springs may support circulation
Nearby Camping
Nearby Camping
Walker Cabin 16.7 mi away

Overview Walker Cabin is nestled among trees just off Crooked River Road #233, which leads into the Gospel-Hump Wilderness Area, in the Nez Perce National Forest. The cabin was originally built around 1930 as a summer home. Jerry and Helen Walker purchased the cabin in 1967, then donated it to the U.S. Forest Service in the 1980s. It is now available for public recreational use. The cabin must be reserved in advanced; there are no walk-ups. Recreation Crooked River is a popular area for many...

Reservable Yes
Reserve on Recreation.gov →
Temperature
131°F
Warm Hot Boiling
Water Temp 131°F (55°C)
Avg Air Temp 41°F
Above Ambient +90°F
Great soaking conditions September
Access
Open
Road Access Roadside
Distance to Road 165 ft
Land
Ownership Federal
Agency US Forest Service
Designation National Forest
Unit Nezperce National Forest
Manager US Forest Service
Protection 3 - Protected, subject to extractive use
Frequently Asked Questions
What is the water temperature at Red River Hot Springs?
Red River Hot Springs has a water temperature of 131°F (55°C). This is considered a hot spring, well above body temperature.
Where is Red River Hot Springs located?
Red River Hot Springs is located in Idaho County, Idaho at 5,040 feet elevation, near Grangeville. Coordinates: 45.7880°N, 115.1980°W.
How do I get to Red River Hot Springs?
Red River Hot Springs has Roadside road access (165 ft from the road).
Is Red River Hot Springs free to visit?
Red River Hot Springs has Open access. It is managed by US Forest Service.
Can I camp near Red River Hot Springs?
Yes, Walker Cabin is located nearby (16.7 miles away).
What minerals are in the water at Red River Hot Springs?
Water chemistry analysis shows the presence of pH, Total Dissolved Solids, Calcium, Magnesium, Sodium, Sulfate, Chloride, Iron. The pH is 9.4 (alkaline). Total dissolved solids measure 274 mg/L.
Is it safe to soak at Red River Hot Springs?
With care. At 131°F Red River Hot Springs is hot enough to need short sessions, fifteen to twenty minutes, and plenty of water. Enter slowly and get out if you feel light-headed.
Sources: USGS NWIS