Warm Springs (State Hospital)

Deer Lodge County, Montana · Near Warm Springs
46.1780°N, 112.7940°W · 4,830 ft
172°F 34°F air · Good soaking weather 4,830 ft Closed Roadside OTHS Camping nearby (12.7 mi)
Very Hot Source, Use Extreme Caution

At 172°F, the source water at Warm Springs (State Hospital) is hot enough to cause burns. Some hot springs this hot have cooler side pools or downstream areas suitable for soaking. Always test the water temperature before entering.

The Warm Springs listed here is the thermal source at the state hospital grounds in Deer Lodge County, Montana, on land held by the Montana Department of Corrections. It is closed to the public. The water is scalding and far beyond anything a person could enter. The town of Warm Springs is the nearest on record, about nine miles away.

Location

Roadside, a hundred and thirty feet or so from the road, at valley elevation, moderate snow, moderate rain. The land is state-owned, under the Department of Corrections, with no designation beyond that. This is institutional ground.

Do not plan a visit; access is closed. High Rye Cabin, nearly thirteen miles off, is the nearest camp on record, for anyone passing through. The water would scald on contact. A 1978 USGS sample recorded neutral water with iron. The listed best months are winter, which is moot for a closed site.

History of Warm Springs (State Hospital)

Montana Department of Corrections holds the land, and a USGS site record exists for the source.

Terrain

USGS hasn't flown a detailed laser scan here yet, so this view comes from aerial photos and older elevation data.

Aerial view of the ground around Warm Springs (State Hospital)

The orange dot marks the spring, in a frame about three quarters of a mile wide.

Setting
Open ground
Flat, open ground all around.
Highest ground nearby
9 ft above the spring
Within a quarter mile, to the southwest
Cross-section through the spring

A slice through the ground from southwest to northeast, about 0.6 miles end to end.

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

Heat Below
95 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 39% 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
21°
Jan
22°
Feb
30°
Mar
37°
Apr
48°
May
57°
Jun
66°
Jul
65°
Aug
55°
Sep
41°
Oct
29°
Nov
19°
Dec
Annual Precip: 19.6 in Annual Snow: 58.6 in
Best Time to Visit
December Air 19°F · Water 172°F · +153° contrast
January Air 21°F · Water 172°F · +151° contrast
February Air 22°F · Water 172°F · +151° contrast
December offers 47°F more contrast than July
Current Conditions
34°F
SSW 23.2 mph 92% Good soaking weather
Today 70° Low 39° Areas Of Frost then Sunny 1% precip
Spring is +102° warmer
Wednesday 68° Low 41° Sunny 1% precip
Spring is +104° warmer
Thursday 76° Low 45° Mostly Sunny then Chance Showers And Thunderstorms 47% precip
Spring is +96° warmer
Friday 68° Low 41° Showers And Thunderstorms Likely 65% precip
Spring is +104° warmer
Saturday 72° Low 41° Mostly Sunny 13% precip
Spring is +100° warmer
Water Chemistry Sampled 1978-08-19

The water at Warm Springs (State Hospital) is neutral (pH 7.0). It is notably rich in calcium (may support bone density and joint health) and sulfate (traditionally used for skin conditions and inflammation).

pH 7.0 Neutral
pH influences mineral absorption through skin
Calcium 220 mg/L
May support bone density and joint health
Magnesium 23 mg/L
Known for muscle relaxation and stress relief
Sodium 120 mg/L
Supports circulation and skin hydration
Sulfate 660 mg/L
Traditionally used for skin conditions and inflammation
Chloride 5 mg/L
Natural antiseptic with skin health benefits
Iron 170 µg/L
Iron-rich springs may support circulation
Where to Stay

Some links are affiliate links. We may earn a commission at no extra cost to you.

Nearby Camping
High Rye Cabin 12.7 mi away

Overview High Rye Cabin is a quaint place to stay, ideally situated for exploring the northern Fleecer Mountains. An abundance of recreational activities are available in this scenic area. The cabin was built by the Civilian Conservation Corps around 1919 and is located in the historic mining district of German Gulch. It was used as an administrative site until the 1940s, when it was opened to the public. The cabin can be accessed by vehicle; however, during the fall, alternative resourc...

Reservable Yes
Reserve on Recreation.gov →
Temperature
172°F
Warm Hot Boiling
Water Temp 172°F (78°C)
Avg Air Temp 41°F
Above Ambient +131°F
Great soaking conditions September
Access
Closed
Road Access Roadside
Distance to Road 136 ft
Land
Ownership State
Agency OTHS
Designation ND
Unit Montana Department of Corrections
Manager OTHS
Protection 4 - No known protection
Frequently Asked Questions
What is the water temperature at Warm Springs (State Hospital)?
Warm Springs (State Hospital) has a water temperature of 172°F (78°C). This is considered a hot spring, well above body temperature.
Where is Warm Springs (State Hospital) located?
Warm Springs (State Hospital) is located in Deer Lodge County, Montana at 4,830 feet elevation, near Warm Springs. Coordinates: 46.1780°N, 112.7940°W.
How do I get to Warm Springs (State Hospital)?
Warm Springs (State Hospital) has Roadside road access (136 ft from the road).
Is Warm Springs (State Hospital) free to visit?
Warm Springs (State Hospital) has Closed access. It is managed by OTHS.
Can I camp near Warm Springs (State Hospital)?
Yes, High Rye Cabin is located nearby (12.7 miles away).
What minerals are in the water at Warm Springs (State Hospital)?
Water chemistry analysis shows the presence of pH, Calcium, Magnesium, Sodium, Sulfate, Chloride, Iron. The pH is 7.0 (neutral).
Is it safe to soak at Warm Springs (State Hospital)?
No, not at the source. The water at Warm Springs (State Hospital) reaches 172°F, which can cause severe burns within seconds. Look for cooled side pools or downstream stretches, and test with a hand before anything else.
Sources: USGS NWIS