Hot Spring

Mono County, California · Near Bridgeport
38.0480°N, 119.0810°W · 6,452 ft
151°F 47°F air · Good soaking weather 6,452 ft Open Roadside US Forest Service Camping nearby (8.0 mi)
Very Hot Source, Use Extreme Caution

At 151°F, the source water at Hot Spring is hot enough to cause burns. Some hot springs this hot have cooler side pools or downstream areas suitable for soaking. Always test the water temperature before entering.

Aerial view of the ground around Hot Spring LiDAR bare-earth view of the same ground around Hot 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.

Roadside and scalding. This unnamed Hot Spring in the Inyo National Forest lies about sixteen miles from Bridgeport in northern Mono County, and the water would cause serious burns. Forest Service land, and access is listed as open. It appears on the USGS thermal site list. Anyone hoping for a soak should read the temperature and move on.

Location

The nearest road is a hundred and thirty-odd feet away, though the road has no name on file. Elevation is in the mid six thousands. Five feet of snow is a normal winter, and the year is dry. For camping the record gives Lower Virginia Creek Primitive Campground, eight miles distant.

The best-rated months are the cold ones, December to February. Keep hands and feet out of the water; it is well past scalding. Nothing on fee or chemistry. No photo either. The Forest Service owns it, so private land is no concern. The record says nothing about signage or barriers, so approach with care.

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 Hot Spring.

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

That's about 2½ times the US average of 65. It's higher than at 92% 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
31°
Feb
35°
Mar
42°
Apr
51°
May
63°
Jun
71°
Jul
70°
Aug
63°
Sep
52°
Oct
40°
Nov
31°
Dec
Annual Precip: 13.9 in Annual Snow: 62.1 in
Best Time to Visit
February Air 31°F · Water 151°F · +121° contrast
December Air 31°F · Water 151°F · +120° contrast
January Air 32°F · Water 151°F · +119° contrast
February offers 41°F more contrast than July
Current Conditions
47°F
SW 17.0 mph 36% Good soaking weather
Tuesday 79° Low 46° Sunny
Spring is +72° warmer
Wednesday 76° Low 43° Sunny
Spring is +75° warmer
Thursday 76° Low 45° Sunny
Spring is +75° warmer
Friday 76° Low 46° Sunny
Spring is +75° warmer
Saturday 79° Low 48° Sunny 2% precip
Spring is +72° warmer
Nearby Camping
Nearby Camping
Lower Virginia Creek Primitive Campground 8.0 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 6,452 ft

Hot Spring sits at 6,452 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
151°F
Warm Hot Boiling
Water Temp 151°F (66°C)
Avg Air Temp 48°F
Above Ambient +103°F
Great soaking conditions September
Access
Open
Road Access Roadside
Distance to Road 133 ft
Land
Ownership Federal
Agency US Forest Service
Designation National Forest
Unit Inyo National Forest
Manager US Forest Service
Protection 3 - Protected, subject to extractive use
Frequently Asked Questions
What is the water temperature at Hot Spring?
Hot Spring has a water temperature of 151°F (66°C). This is considered a hot spring, well above body temperature.
Where is Hot Spring located?
Hot Spring is located in Mono County, California at 6,452 feet elevation, near Bridgeport. Coordinates: 38.0480°N, 119.0810°W.
How do I get to Hot Spring?
Hot Spring has Roadside road access (133 ft from the road).
Is Hot Spring free to visit?
Hot Spring has Open access. It is managed by US Forest Service.
Can I camp near Hot Spring?
Yes, Lower Virginia Creek Primitive Campground is located nearby (8.0 miles away).
Is it safe to soak at Hot Spring?
No, not at the source. The water at Hot Spring reaches 151°F, which can cause severe burns within seconds. Look for cooled side pools or downstream stretches, and test with a hand before anything else.
Sources: USGS NWIS