Unnamed Thermal Spring

Mono County, California · Near Mammoth Lakes
37.6070°N, 118.8080°W · 7,040 ft
73°F 7,040 ft Open Roadside Bureau of Land Management Camping nearby (3.2 mi)

This 73-degree thermal spring emerges at 7,040 feet on Bureau of Land Management lands near Mammoth Lakes, where water runs 26 degrees warmer than the frigid alpine air averaging just 46.8 degrees annually. The location on protective public land emphasizes the value of federal conservation over private development.

Location
26 miles from Mammoth Lakes, CA

The spring rises in exposed high country terrain where vegetation thins dramatically, with scattered alpine scrub and whitebark pine clinging to rocky slopes. The thermal water issues from broken bedrock in a landscape carved by ancient glaciers, with views extending across the high Owens Valley to distant peaks.

The spring sits 77 meters from road access, providing easy vehicle-dependent access. Harsh winter conditions with 99 inches of snow make December through March difficult months for visits. Spring through fall offer superior conditions, though afternoon winds can be intense at this elevation where protective forest cover diminishes.

History of This Spring

This spring sits within the Bishop Field Office of the Bureau of Land Management, federal land designated for multiple uses including recreation while allowing measured extractive activity. The thermal water's source traces to deeper geothermal reservoirs maintained by stress along basin-and-range faults that stretch from Mono County into Nevada.

Monthly Climate
32°
Jan
30°
Feb
34°
Mar
41°
Apr
48°
May
61°
Jun
68°
Jul
67°
Aug
61°
Sep
51°
Oct
39°
Nov
30°
Dec
Annual Precip: 18.1 in Annual Snow: 99.0 in
Best Time to Visit
February Air 30°F · Water 73°F · +43° contrast
December Air 30°F · Water 73°F · +43° contrast
January Air 32°F · Water 73°F · +42° contrast
February offers 38°F more contrast than July
Current Conditions
36°F
Clear N 0.0 mph 75% Good soaking weather
Today 75° Low 37° Sunny 3% precip
Friday 77° Low 38° Sunny
Saturday 79° Low 42° Sunny
Sunday 81° Low 45° Sunny
Monday 82° Low 45° Sunny
Where to Stay

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Nearby Camping
Mcgee Creek 3.2 mi away

Overview McGee Campground provides a pleasant, sunny location for family camping between Bishop and Mammoth Lakes in the eastern Sierra Nevada Mountains. The campground's proximity to U.S. Highway 395 and the adjacent John Muir Wilderness make it a hot spot for hiking, rock climbing, fishing, wildlife viewing, horseback riding, hunting, photography and geology study.Recreation Majestic scenery and challenging trails draw in hikers, mountain bikers and equestrian enthusiasts. The McGee Creek...

Reservable Yes
Reserve on Recreation.gov →
Mile-High Advisory 7,040 ft

this spring sits at 7,040 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 28% stronger than at sea level, so bring sunscreen and drink more water than you normally would.

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Temperature
73°F
Warm Hot Boiling
Water Temp 73°F (23°C)
Avg Air Temp 47°F
Above Ambient +26°F
Mild soaking conditions May
Access
Open
Road Access Roadside
Distance to Road 253 ft
Land
Ownership Federal
Agency Bureau of Land Management
Designation PUB
Unit Bishop Field Office
Manager Bureau of Land Management
Protection 3 - Protected, subject to extractive use
Frequently Asked Questions
What is the water temperature at ?
has a water temperature of 73°F (23°C). This is a warm thermal spring.
Where is located?
is located in Mono County, California at 7,040 feet elevation, near Mammoth Lakes. Coordinates: 37.6070°N, 118.8080°W.
How do I get to ?
has Roadside road access (253 ft from the road).
Is free to visit?
has Open access. It is managed by Bureau of Land Management.
Can I camp near ?
Yes, Mcgee Creek is located nearby (3.2 miles away).
Is it safe to soak at ?
is generally safe for soaking at its recorded temperature. Always tell someone your plans before visiting remote hot springs.
Is crowded?
is accessible from a paved road, making it easy to reach. Weekends and holidays may be busier — consider visiting on a weekday for a quieter experience.
What should I bring to ?
Essentials for : swimsuit, towel, water bottle, camping gear, a trash bag to pack out what you pack in.