Mono Basin Warm Springs

Mono County, California · Near Mammoth Lakes
38.0330°N, 118.9020°W · 6,434 ft
88°F 46°F air · Good soaking weather 6,434 ft Open Short Walk SDOL Camping nearby (17.8 mi)

State land holds Mono Basin Warm Springs, in Mono County about 28 miles from Mammoth Lakes, off East Shore Road. The California State Lands Commission is the listed owner and the public-access entry says open. Water temperature is a little under body heat. The page has a photo, and a USGS site number is attached.

Location

East Shore Road runs under five hundred feet away. Elevation is around 6,400 feet, in dry country with a moderately snowy winter and little rain. The land carries an SRMA designation under the State Lands Commission. Lower Virginia Creek Primitive Campground is the camping listed, nearly eighteen miles off by the record.

Winter comes out ahead in the best-months data; snow here is moderate so that may hold. The water is safe to sit in as far as temperature goes and will not feel hot. No fee on record. Camping is a long way off, at Lower Virginia Creek. No chemistry has been recorded despite the USGS site number.

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 Mono Basin Warm Springs.

Aerial view of the ground around Mono Basin Warm Springs LiDAR bare-earth view of the same ground around Mono Basin Warm 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.

Setting
Open ground
Flat, open ground all around.
Highest ground nearby
41 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
140 milliwatts per square meter of heat flow

That's about twice the US average of 65. It's higher than at 89% 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
30°
Jan
30°
Feb
35°
Mar
44°
Apr
52°
May
65°
Jun
72°
Jul
71°
Aug
64°
Sep
52°
Oct
40°
Nov
29°
Dec
Annual Precip: 12.9 in Annual Snow: 54.8 in
Best Time to Visit
December Air 29°F · Water 88°F · +59° contrast
January Air 30°F · Water 88°F · +58° contrast
February Air 30°F · Water 88°F · +58° contrast
December offers 43°F more contrast than July
Current Conditions
46°F
WSW 3.0 mph 55% Good soaking weather
Tuesday 71° Low 50° Sunny
Spring is +17° warmer
Wednesday 68° Low 49° Sunny
Spring is +20° warmer
Thursday 67° Low 50° Sunny
Spring is +21° warmer
Friday 68° Low 51° Sunny
Spring is +20° warmer
Saturday 70° Low 52° Sunny 2% precip
Spring is +18° warmer
Where to Stay

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Nearby Camping
Lower Virginia Creek Primitive Campground 17.8 mi away

Rustic campsites with fire rings in Jeffrey Pine Forest. There is no trash service please pack out your trash.

Reserve on Recreation.gov →
Mile-High Advisory 6,434 ft

Mono Basin Warm Springs sits at 6,434 feet above sea level, way above the mile-high mark. You may not feel the altitude strongly, but hot water still dehydrates you faster at elevation. UV is about 26% stronger than at sea level, so bring sunscreen and drink more water than you normally would.

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Temperature
88°F
Warm Hot Boiling
Water Temp 88°F (31°C)
Avg Air Temp 49°F
Above Ambient +39°F
Mild soaking conditions September
Access
Open
Road Access Short Walk
Nearest Road East Shore Road
Distance to Road 491 ft
Land
Ownership State
Agency SDOL
Designation SRMA
Unit California State Lands Commission
Manager SDOL
Protection 3 - Protected, subject to extractive use
Frequently Asked Questions
What is the water temperature at Mono Basin Warm Springs?
Mono Basin Warm Springs has a water temperature of 88°F (31°C). This is a warm thermal spring.
Where is Mono Basin Warm Springs located?
Mono Basin Warm Springs is located in Mono County, California at 6,434 feet elevation, near Mammoth Lakes. Coordinates: 38.0330°N, 118.9020°W.
How do I get to Mono Basin Warm Springs?
Mono Basin Warm Springs has Short Walk road access, with the nearest road being East Shore Road (491 ft from the road).
Is Mono Basin Warm Springs free to visit?
Mono Basin Warm Springs has Open access. It is managed by SDOL.
Can I camp near Mono Basin Warm Springs?
Yes, Lower Virginia Creek Primitive Campground is located nearby (17.8 miles away).
Sources: USGS NWIS