Avon Warm Spring

Powell County, Montana · Near Deer Lodge
46.6100°N, 112.5550°W · 4,876 ft
79°F 33°F air · Good soaking weather 4,876 ft Roadside Camping nearby (12.3 mi)
Aerial view of the ground around Avon Warm Spring

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

Avon Warm Spring is tepid water in Powell County, Montana, seventeen miles from Deer Lodge. On a hot day it would be comfortable to stand in. No chemistry has been taken, the record says nothing about ownership or access, and the USGS never gave it a site number. The temperature is the whole file.

Location

The spring is essentially in the road; eleven feet is the recorded distance to the nearest one, which goes unnamed in our data. It sits at a middling Montana elevation, in a valley that sees six feet or so of snow over a winter. Quigley Group Use is the nearest camping, twelve miles out.

The file lists the dead of winter as best. Anything that close to a road is easy to reach and easy to get in trouble over if the ground turns out private, and the record is silent on that. The water will not warm you in winter. There is no sample to tell you what is dissolved in it.

Terrain

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

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

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

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

Heat Below
109 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 59% 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
20°
Feb
29°
Mar
37°
Apr
47°
May
57°
Jun
66°
Jul
66°
Aug
55°
Sep
41°
Oct
28°
Nov
19°
Dec
Annual Precip: 21.3 in Annual Snow: 71.8 in
Best Time to Visit
December Air 19°F · Water 79°F · +60° contrast
February Air 20°F · Water 79°F · +59° contrast
January Air 21°F · Water 79°F · +58° contrast
December offers 47°F more contrast than August
Current Conditions
33°F
E 0.0 mph Good soaking weather
Today 67° Low 38° Widespread Frost then Mostly Sunny 1% precip
Spring is +12° warmer
Wednesday 63° Low 37° Mostly Sunny 4% precip
Spring is +16° warmer
Thursday 73° Low 42° Mostly Sunny then Chance Showers And Thunderstorms 29% precip
Spring is +6° warmer
Friday 67° Low 40° Chance Light Rain then Showers And Thunderstorms Likely 59% precip
Spring is +12° warmer
Saturday 70° Low 41° Sunny 13% precip
Spring is +9° warmer
Nearby Camping
Nearby Camping
Quigley Group Use 12.3 mi away

Overview Quigley Group Use Site sits in forested mountain terrain on the top of MacDonald Pass about 15 miles west of Helena, Montana. Quigley is on public land managed by the Helena Ranger District of the Helena-Lewis and Clark National Forest and is adjacent to the Continental Divide National Scenic (CDNST) trail. Located right on the Continental Divide at 6,300 feet elevation, there are spectacular views of surrounding country encompassing meadows, timbered slopes, and mountains. The site...

Fee There is a $50/night fee for the group site.
Reservable Yes
Reserve on Recreation.gov →
Temperature
79°F
Warm Hot Boiling
Water Temp 79°F (26°C)
Avg Air Temp 40°F
Above Ambient +39°F
Mild soaking conditions September
Access
Road Access Roadside
Distance to Road 11 ft
Frequently Asked Questions
What is the water temperature at Avon Warm Spring?
Avon Warm Spring has a water temperature of 79°F (26°C). This is a warm thermal spring.
Where is Avon Warm Spring located?
Avon Warm Spring is located in Powell County, Montana at 4,876 feet elevation, near Deer Lodge. Coordinates: 46.6100°N, 112.5550°W.
How do I get to Avon Warm Spring?
Avon Warm Spring has Roadside road access (11 ft from the road).
Can I camp near Avon Warm Spring?
Yes, Quigley Group Use is located nearby (12.3 miles away). There is a $50/night fee for the group site..