Running Warm Springs

Ravalli County, Idaho · Near Hamilton
45.8520°N, 114.9370°W · 4,140 ft
106°F 32°F air · Good soaking weather 4,140 ft Open Short Walk US Forest Service Camping nearby (9.6 mi)
Aerial view of the ground around Running Warm Springs LiDAR bare-earth view of the same ground around Running Warm 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.

Running Warm Springs is on Nezperce National Forest land in Ravalli County, about 24 miles from Hamilton. Despite the name, the 1982 reading was hot, a little above soaking temperature, with strongly alkaline water. The public is allowed in. Hamilton is the nearest town in the record and the spring sits well out from it.

Location

Running Creek Road is the nearest road, a bit over half a mile away, so plan on a walk. This is wet country for the region: three feet of precipitation and snowfall past twelve feet. Moderate elevation. The forest is Forest Service ground with the plain national forest designation.

Paradise Campground is the nearest camp in the record, nearly ten miles off. December through February are the months given as best, though that much snow makes winter access a question. Chemistry dates to 1982, as does the temperature, so both figures are over forty years 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 Running Warm Springs.

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

A slice through the ground from northwest to southeast, about 0.6 miles end to end.

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

Heat Below
98 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 44% 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
27°
Jan
29°
Feb
35°
Mar
40°
Apr
48°
May
58°
Jun
69°
Jul
69°
Aug
59°
Sep
45°
Oct
31°
Nov
24°
Dec
Annual Precip: 35.7 in Annual Snow: 147.7 in
Best Time to Visit
December Air 24°F · Water 106°F · +82° contrast
January Air 27°F · Water 106°F · +79° contrast
February Air 29°F · Water 106°F · +77° contrast
December offers 45°F more contrast than August
Current Conditions
32°F
E 0.0 mph 100% Good soaking weather
Today 68° Low 44° Mostly Sunny 1% precip
Spring is +38° warmer
Wednesday 72° Low 48° Sunny 1% precip
Spring is +34° warmer
Thursday 72° Low 49° Mostly Sunny then Showers And Thunderstorms Likely 58% precip
Spring is +34° warmer
Friday 67° Low 46° Light Rain Likely then Chance Showers And Thunderstorms 57% precip
Spring is +39° warmer
Saturday 71° Low 48° Sunny 6% precip
Spring is +35° warmer
Water Chemistry Sampled 1982-07-13

The water at Running Warm Springs is alkaline (pH 9.7).

pH 9.7 Alkaline
pH influences mineral absorption through skin
Calcium 2 mg/L
May support bone density and joint health
Magnesium 0 mg/L
Known for muscle relaxation and stress relief
Sodium 42 mg/L
Supports circulation and skin hydration
Sulfate 6 mg/L
Traditionally used for skin conditions and inflammation
Chloride 1 mg/L
Natural antiseptic with skin health benefits
Nearby Camping
Nearby Camping
Paradise Campground 9.6 mi away

Paradise Campground is located near the Paradise Boating Site which is one of the most popular launching sites on the Selway River. The campground consists of 11 sites complete with picnic tables, and fire rings. Other facilities include 3 vault toilets, hitching rails, and feed bunks.  Campground can accommodate RV's or trailers to 25 feet.

Reserve on Recreation.gov →
Temperature
106°F
Warm Hot Boiling
Water Temp 106°F (41°C)
Avg Air Temp 44°F
Above Ambient +62°F
Good soaking conditions September
Access
Open
Road Access Short Walk
Nearest Road Running Creek Road
Distance to Road 0.6 mi
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 Running Warm Springs?
Running Warm Springs has a water temperature of 106°F (41°C). This is considered a hot spring, well above body temperature.
Where is Running Warm Springs located?
Running Warm Springs is located in Ravalli County, Idaho at 4,140 feet elevation, near Hamilton. Coordinates: 45.8520°N, 114.9370°W.
How do I get to Running Warm Springs?
Running Warm Springs has Short Walk road access, with the nearest road being Running Creek Road (0.6 mi from the road).
Is Running Warm Springs free to visit?
Running Warm Springs has Open access. It is managed by US Forest Service.
Can I camp near Running Warm Springs?
Yes, Paradise Campground is located nearby (9.6 miles away).
What minerals are in the water at Running Warm Springs?
Water chemistry analysis shows the presence of pH, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 9.7 (alkaline).
Sources: USGS NWIS