Ennis Hot Springs

Madison County, Montana · Near Virginia City
45.3670°N, 111.7260°W · 4,907 ft
181°F 31°F air · Good soaking weather 4,907 ft Roadside Camping nearby (11.2 mi)
Very Hot Source, Use Extreme Caution

At 181°F, the source water at Ennis Hot Springs 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.

Aerial view of the ground around Ennis Hot Springs LiDAR bare-earth view of the same ground around Ennis 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.

Ennis Hot Springs in Madison County, Montana, eleven miles from Virginia City, is a scalding source. The water emerges far above the temperature that burns skin, closer to a kettle than a bath. Nobody has recorded an owner or an access status. The USGS analysis, from 1976, shows near-neutral, mineralized water.

Location
47 miles from Virginia City, MT

Snipe Lane is the nearest road, about a hundred feet off. The Madison valley sits at moderate elevation with close to six feet of snow between fall and spring and modest rainfall. Axolotl Cabin is the camping on file, about as far off as Virginia City. No land unit is listed, so whose ground this is remains an open question.

This heat scalds on the instant, so stay out of the source entirely. To soak you would need the water cooled a long way down, and nothing on record suggests that happens. Who owns it and who can go there are both unknown. Cold months are the ones flagged as best. The chemistry numbers are half a century 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 Ennis Hot Springs.

Setting
Gentle slope
The ground tilts gently up to the west.
Highest ground nearby
29 ft above the spring
Within a quarter mile, to the west
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
96 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 41% 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
31°
Mar
38°
Apr
49°
May
60°
Jun
69°
Jul
68°
Aug
58°
Sep
43°
Oct
29°
Nov
19°
Dec
Annual Precip: 19.6 in Annual Snow: 70.0 in
Best Time to Visit
December Air 19°F · Water 181°F · +162° contrast
January Air 21°F · Water 181°F · +160° contrast
February Air 22°F · Water 181°F · +160° contrast
December offers 50°F more contrast than July
Current Conditions
31°F
N 3.6 mph 92% Good soaking weather
Today 73° Low 37° Sunny
Spring is +108° warmer
Wednesday 69° Low 42° Sunny 3% precip
Spring is +112° warmer
Thursday 76° Low 46° Showers And Thunderstorms Likely 62% precip
Spring is +105° warmer
Friday 69° Low 42° Rain Showers Likely 68% precip
Spring is +112° warmer
Saturday 73° Low 43° Slight Chance Light Rain 18% precip
Spring is +108° warmer
Water Chemistry Sampled 1976-04-01

The water at Ennis Hot Springs is slightly alkaline (pH 7.7).

pH 7.7 Slightly Alkaline
pH influences mineral absorption through skin
Calcium 50 mg/L
May support bone density and joint health
Magnesium 20 mg/L
Known for muscle relaxation and stress relief
Sodium 25 mg/L
Supports circulation and skin hydration
Sulfate 34 mg/L
Traditionally used for skin conditions and inflammation
Chloride 19 mg/L
Natural antiseptic with skin health benefits
Nearby Camping
Nearby Camping
Axolotl Cabin 11.2 mi away

Overview The Dillon Field Office is unable to make reservations for you. Please call Recreation.gov (877-444-6777) to book a reservation or book online. Axolotl Cabin is located approximately 14 miles southwest of Ennis, Montana, in the foothills of the Gravelly Range. The cabin provides access to a variety of outdoor recreational activities and breathtaking views as it peers over the Madison Valley. The cabin is at an elevation of about 7,000 feet and is adjacent to Axolotl Lakes Wildernes...

Reservable Yes
Reserve on Recreation.gov →
Temperature
181°F
Warm Hot Boiling
Water Temp 181°F (83°C)
Avg Air Temp 42°F
Above Ambient +139°F
Great soaking conditions September
Access
Road Access Roadside
Nearest Road Snipe Lane
Distance to Road 105 ft
Frequently Asked Questions
What is the water temperature at Ennis Hot Springs?
Ennis Hot Springs has a water temperature of 181°F (83°C). This is considered a hot spring, well above body temperature.
Where is Ennis Hot Springs located?
Ennis Hot Springs is located in Madison County, Montana at 4,907 feet elevation, near Virginia City. Coordinates: 45.3670°N, 111.7260°W.
How do I get to Ennis Hot Springs?
Ennis Hot Springs has Roadside road access, with the nearest road being Snipe Lane (105 ft from the road).
Can I camp near Ennis Hot Springs?
Yes, Axolotl Cabin is located nearby (11.2 miles away).
What minerals are in the water at Ennis Hot Springs?
Water chemistry analysis shows the presence of pH, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 7.7 (slightly alkaline).
Is it safe to soak at Ennis Hot Springs?
No, not at the source. The water at Ennis Hot Springs reaches 181°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