Unnamed Thermal Spring

Modoc County, California · Near Alturas
41.3600°N, 120.7230°W · 4,503 ft
81°F 4,503 ft Short Walk
Aerial view of the ground around the spring LiDAR bare-earth view of the same ground around the 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.

About a dozen miles from Alturas, an unnamed thermal point sits a few hundred feet off California Pines Boulevard in Modoc County. Water temperature on record is 81 degrees, lukewarm. Nobody has recorded an owner for the ground or a public access status. No campground is listed within reach, and no photograph exists on file.

Location

California Pines Boulevard is the road on record, with the spring under five hundred feet from it, a short walk. Elevation is about forty-five hundred feet. Snow averages four feet each winter and the yearly precipitation total is around nineteen inches, a dry climate with cold winters and a mean temperature near fifty.

The three coldest months are the ones on record. Expect snow on the approach. There is no campground on file, so plan to day-trip or camp elsewhere. Ownership and access are unknown; ask locally. No fee recorded. Eighty-one degrees feels warm on a freezing day and little else.

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 this spring.

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

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

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

Heat Below
94 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 38% 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
33°
Jan
34°
Feb
39°
Mar
46°
Apr
55°
May
65°
Jun
75°
Jul
73°
Aug
65°
Sep
51°
Oct
40°
Nov
32°
Dec
Annual Precip: 18.7 in Annual Snow: 47.5 in
Best Time to Visit
January Air 33°F · Water 81°F · +49° contrast
December Air 32°F · Water 81°F · +49° contrast
February Air 34°F · Water 81°F · +47° contrast
January offers 43°F more contrast than July
Current Conditions
Clear N 0.0 mph
Tuesday 76° Low 42° Sunny 2% precip
Spring is +5° warmer
Wednesday 71° Low 43° Mostly Sunny then Isolated Showers And Thunderstorms 16% precip
Spring is +10° warmer
Thursday 70° Low 42° Sunny 10% precip
Spring is +11° warmer
Friday 76° Low 42° Sunny
Spring is +5° warmer
Saturday 79° Low 45° Sunny
Spring is +2° warmer
Temperature
81°F
Warm Hot Boiling
Water Temp 81°F (27°C)
Avg Air Temp 51°F
Above Ambient +30°F
Mild soaking conditions September
Access
Road Access Short Walk
Nearest Road California Pines Boulevard
Distance to Road 492 ft
Frequently Asked Questions
What is the water temperature at ?
has a water temperature of 81°F (27°C). This is a warm thermal spring.
Where is located?
is located in Modoc County, California at 4,503 feet elevation, near Alturas. Coordinates: 41.3600°N, 120.7230°W.
How do I get to ?
has Short Walk road access, with the nearest road being California Pines Boulevard (492 ft from the road).