Fales Hot Springs

Also known as: Fales Hot Spring
Mono County, California · Near Bridgeport
38.3480°N, 119.4000°W · 7,491 ft
180°F 33°F air · Good soaking weather 7,491 ft Short Walk Camping nearby (4.3 mi)
Very Hot Source, Use Extreme Caution

At 180°F, the source water at Fales Hot Springs 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.

Fales Hot Springs is a scalding spring on private property in Mono County near Sonora Junction, about twelve miles from Bridgeport. The owners live there. Wikipedia says it is not open to the public, even though access is blank on file. The water comes out far too hot to touch.

Location

The spring lies a fifth of a mile from an unnamed road, high in the eastern Sierra Nevada at roughly seven and a half thousand feet. Winter here brings ten-plus feet of snow, most years, and a yearly average temperature in the low forties. Obsidian Campground is on file about four miles away.

There is no public soaking here. The property is a private residence and closed to visitors, so the listed best months, midwinter, are academic. The USGS has a monitoring site for the spring. If you are passing through, Obsidian Campground is the nearby camp on record.

History of Fales Hot Springs

Wikipedia places Fales Hot Springs in the Sonora Junction area of the eastern Sierra and gives a slightly lower elevation than the record does. OpenStreetMap carries it in the singular, Fales Hot Spring. The property doubles as a private home.

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 Fales Hot Springs.

Aerial view of the ground around Fales Hot Springs LiDAR bare-earth view of the same ground around Fales Hot 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
Hillside
The spring sits on a steep slope that climbs to the south.
Highest ground nearby
339 ft above the spring
Within a quarter mile, to the south
Cross-section through the spring

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

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

Heat Below
131 milliwatts per square meter of heat flow

That's about twice the US average of 65. It's higher than at 81% 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
29°
Jan
27°
Feb
31°
Mar
36°
Apr
44°
May
57°
Jun
65°
Jul
64°
Aug
57°
Sep
46°
Oct
35°
Nov
25°
Dec
Annual Precip: 24.5 in Annual Snow: 138.9 in
Best Time to Visit
December Air 25°F · Water 180°F · +155° contrast
February Air 27°F · Water 180°F · +153° contrast
January Air 29°F · Water 180°F · +152° contrast
December offers 40°F more contrast than July
Current Conditions
33°F
SSW 8.4 mph 73% Good soaking weather
Tuesday 72° Low 35° Sunny
Spring is +108° warmer
Wednesday 67° Low 35° Sunny
Spring is +113° warmer
Thursday 67° Low 32° Sunny
Spring is +113° warmer
Friday 69° Low 33° Sunny
Spring is +111° warmer
Saturday 72° Low 35° Sunny 1% precip
Spring is +108° warmer
Where to Stay

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Nearby Camping
Obsidian Campground 4.3 mi away

Obsidian Campground offers opportunity to get away from crowds amidst shade of aspens and pines. Campground is close to Molybdenite Creek and Little Walker River. The river is stocked with trout. Area trailheads offer several interesting hikes. The trail from Molybdenite Creek trailhead splits, with one branch heading south into the Hoover Wilderness, and one looping north along Wheeler Creek to connect with the trail along the Little Walker River. This can be hiked as a loop from Burt Canyon...

Reserve on Recreation.gov →
Mile-High Advisory 7,491 ft

Fales Hot Springs sits at 7,491 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 30% stronger than at sea level, so bring sunscreen and drink more water than you normally would.

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Temperature
180°F
Warm Hot Boiling
Water Temp 180°F (82°C)
Avg Air Temp 43°F
Above Ambient +137°F
Great soaking conditions September
Access
Road Access Short Walk
Distance to Road 0.2 mi
Frequently Asked Questions
What is the water temperature at Fales Hot Springs?
Fales Hot Springs has a water temperature of 180°F (82°C). This is considered a hot spring, well above body temperature.
Where is Fales Hot Springs located?
Fales Hot Springs is located in Mono County, California at 7,491 feet elevation, near Bridgeport. Coordinates: 38.3480°N, 119.4000°W.
How do I get to Fales Hot Springs?
Fales Hot Springs has Short Walk road access (0.2 mi from the road).
Can I camp near Fales Hot Springs?
Yes, Obsidian Campground is located nearby (4.3 miles away).
Is it safe to soak at Fales Hot Springs?
No, not at the source. The water at Fales Hot Springs reaches 180°F, which can cause severe burns within seconds. Look for cooled side pools or downstream stretches, and test with a hand before anything else.