Warm Spring

Modoc County, California · Near Alturas
41.2520°N, 120.5210°W · 4,404 ft
75°F 4,404 ft Short Walk Camping nearby (17.6 mi)
Aerial view of the ground around Warm Spring LiDAR bare-earth view of the same ground around Warm Spring
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.

The second Modoc County record called Warm Spring lies closer to Alturas, around 16 miles out, and a bit lower down. At 75 degrees it is tepid, the kind of water you notice is warm when the morning is cold and forget about by noon. Nothing about the owner or access is written down, and no fee either. County Road 151 is the nearest named road.

Location

County Road 151 comes within half a mile, leaving a short walk at the end. The spring sits at roughly 4,400 feet, in country that takes a good 56 inches of snow through a normal winter and stays cool the rest of the time. Rain is modest. Patterson Guard Station is the nearest camping anyone has recorded, and it is nearly eighteen miles away.

Best months on record are the winter three, but those are also the snow months, and County Road 151 may not be plowed where you need it. There is no campground close. No fee on file. Since ownership is blank, assume the land could be private until a sign or a local tells you otherwise.

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 Warm Spring.

Setting
Open ground
Flat, open ground all around.
Highest ground nearby
13 ft above the spring
Within a quarter mile, to the east
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
80 milliwatts per square meter of heat flow

That's close to the US average of 65. It's higher than at 16% 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
32°
Jan
34°
Feb
39°
Mar
46°
Apr
55°
May
66°
Jun
76°
Jul
74°
Aug
65°
Sep
52°
Oct
40°
Nov
31°
Dec
Annual Precip: 18.8 in Annual Snow: 55.7 in
Best Time to Visit
December Air 31°F · Water 75°F · +44° contrast
January Air 32°F · Water 75°F · +43° contrast
February Air 34°F · Water 75°F · +41° contrast
December offers 45°F more contrast than July
Current Conditions
Clear N 0.0 mph
Tuesday 80° Low 39° Sunny 1% precip
Wednesday 74° Low 41° Sunny 14% precip
Spring is +1° warmer
Thursday 73° Low 39° Sunny 10% precip
Spring is +2° warmer
Friday 79° Low 39° Sunny 1% precip
Saturday 82° Low 42° Sunny
Where to Stay

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Nearby Camping
Patterson Guard Station 17.6 mi away

Overview *Altitude is 7,080 feet above sea level*  Set on the edge of a meadow surrounded by Aspen, Fir and Pine trees, Patterson Guard Station has stood since 1921. It served the Modoc National Forest as a fully staffed fire office and guard station until 1981.   Just a few footsteps from the Summit Trail and one-quarter mile from the wilderness boundary, Patterson Guard Station can be your basecamp for trips into the South Warner Wilderness or the perfect place to disconnect and relax. The...

Reservable Yes
Reserve on Recreation.gov →
Temperature
75°F
Warm Hot Boiling
Water Temp 75°F (24°C)
Avg Air Temp 51°F
Above Ambient +24°F
Mild soaking conditions September
Access
Road Access Short Walk
Nearest Road County Road 151
Distance to Road 0.4 mi
Frequently Asked Questions
What is the water temperature at Warm Spring?
Warm Spring has a water temperature of 75°F (24°C). This is a warm thermal spring.
Where is Warm Spring located?
Warm Spring is located in Modoc County, California at 4,404 feet elevation, near Alturas. Coordinates: 41.2520°N, 120.5210°W.
How do I get to Warm Spring?
Warm Spring has Short Walk road access, with the nearest road being County Road 151 (0.4 mi from the road).
Can I camp near Warm Spring?
Yes, Patterson Guard Station is located nearby (17.6 miles away).
Sources: Wikipedia