Warm Sulphur Springs

San Bernardino County, California · Near Searles Valley
36.1220°N, 117.2170°W · 1,030 ft
80°F 85°F air 1,030 ft Open Short Walk Bureau of Land Management
Aerial view of the ground around Warm Sulphur Springs LiDAR bare-earth view of the same ground around Warm Sulphur 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.

Out in the desert of San Bernardino County, Warm Sulphur Springs is a BLM spring that the Ridgecrest Field Office administers. Searles Valley is the closest town and it is a good twenty-six miles away. The water is tepid, bathwater gone cool. Access is open. The USGS keeps a site record for it, which tells you it is a catalogued thermal point. Nothing in the file says anything about pools or development.

Location

Indian Ranch Road comes within about a tenth of a mile, so there is a short walk at the end and that is all. This is low desert, around a thousand feet up, and the climate numbers are severe: a hot yearly average and hardly any rain. Snow shows up as a trace on paper. Public land under the Bureau of Land Management, with no designation beyond that.

Winter is the window. December through February are the months on record, and given the summer heat out here that makes sense. Short walk from the road. No campground is listed nearby and no fee is on file. Nobody has logged a water sample, so the chemistry is unknown; the name alone suggests sulphur.

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 Sulphur Springs.

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

That's about 1½ times the US average of 65. It's higher than at 61% 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
55°
Jan
59°
Feb
65°
Mar
73°
Apr
79°
May
91°
Jun
95°
Jul
94°
Aug
88°
Sep
76°
Oct
62°
Nov
53°
Dec
Annual Precip: 4.2 in Annual Snow: 1.2 in
Best Time to Visit
December Air 53°F · Water 80°F · +27° contrast
January Air 55°F · Water 80°F · +25° contrast
February Air 59°F · Water 80°F · +21° contrast
December offers 42°F more contrast than July
Current Conditions
85°F
ESE 8.3 mph 14%
Tuesday 101° Low 73° Sunny
Wednesday 98° Low 71° Sunny
Thursday 99° Low 71° Sunny
Friday 102° Low 71° Sunny
Saturday 104° Low 73° Sunny
Where to Stay

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

Temperature
80°F
Warm Hot Boiling
Water Temp 80°F (27°C)
Avg Air Temp 74°F
Above Ambient +6°F
Mild soaking conditions September
Access
Open
Road Access Short Walk
Nearest Road Indian Ranch Road
Distance to Road 0.1 mi
Land
Ownership Federal
Agency Bureau of Land Management
Designation PUB
Unit Ridgecrest Field Office
Manager Bureau of Land Management
Protection 3 - Protected, subject to extractive use
Frequently Asked Questions
What is the water temperature at Warm Sulphur Springs?
Warm Sulphur Springs has a water temperature of 80°F (27°C). This is a warm thermal spring.
Where is Warm Sulphur Springs located?
Warm Sulphur Springs is located in San Bernardino County, California at 1,030 feet elevation, near Searles Valley. Coordinates: 36.1220°N, 117.2170°W.
How do I get to Warm Sulphur Springs?
Warm Sulphur Springs has Short Walk road access, with the nearest road being Indian Ranch Road (0.1 mi from the road).
Is Warm Sulphur Springs free to visit?
Warm Sulphur Springs has Open access. It is managed by Bureau of Land Management.
Sources: USGS NWIS