PERMANENTLY CLOSED
Casa Diablo Hot Springs, California has closed for good. We have left this page up so the record stays findable, but do not plan a trip around it — booking, directions and gear links have all been removed.
See springs still open nearbyCasa Diablo Hot Springs, California
Mono County, California3.7 (6 reviews on Google)
Viewing only — do not enter the water
This is a protected geothermal feature. Entering the water is prohibited and has been fatal. Stay on designated boardwalks.
In Mono County, California, Casa Diablo Hot Springs, California is a short way off Hot Springs Road — under a quarter mile. Status on file: permanently closed; treat this page as archival. Treated here as a viewing site rather than a soak; nothing on file corroborates that label. NOAA lists 199°F at the vent here — a scalding reading above 110°F. Entry pricing does not apply in its closed state and the amenities list is empty in our data.
Source: NOAA thermal springs survey — CASA DIABLO HOT SPRINGS AND GEYSER, 0.20 mi (vent temperature; not a soaking pool)
At a glance
Water temp
Above 110°F — risk of burns; test before entering
NOAA thermal springs survey — CASA DIABLO HOT SPRINGS AND GEYSER, 0.20 mi (vent temperature; not a soaking pool)
Survey-measured
Road required
Any car
Unverified
Getting there
Paved Road
Unverified
Camping on site
Not indicated
Unverified
Cell service
Not confirmed
Information verified: — roads and policies change without notice.
Conditions at the spring
What we can actually confirm
Every attribute shows its source. Where nothing confirms it, we say so rather than guess.
Vehicle needed
Not confirmed
Getting to the water
Paved Road
Camping on site
Not indicated
Development
Sightseeing Only
The water
Tips before you go
Practical notes from operators, land managers and published sources — plus reviews written here.
Not a soaking spring: USGS describes Casa Diablo Hot Springs as the site of the Mammoth geothermal power plant, whose production wells supply 170°C (338°F) water. Do not try to soak here. Source: https://www.usgs.gov/volcanoes/long-valley-caldera/science/casa-diablo-hot-springs-and-geothermal-facility-long-valley
Been here?
Loading…
Contact & location
Address: California 93546
Keep this page honest
Road and closure status for Casa Diablo Hot Springs, California is the fastest-decaying fact on this page. If something has changed on the ground, tell us and we will re-check it.
Go here instead
Casa Diablo Hot Springs, California is closed, but these are open and within reach — the closest first.
