Amedee Hot Springs

Lassen County County, California · Near Janesville
40.3020°N, 120.1950°W · 4,009 ft
203°F 4,009 ft Roadside Camping nearby (14.5 mi)
Dangerously Hot — Not Safe for Soaking

Amedee Hot Springs reaches 203°F, far above safe soaking levels. Contact with this water will cause severe burns. Look for cooled downstream pools or view from a safe distance only.

Amedee Hot Springs
File:ISS018-E-13288 - View of California.jpg — public domain

Amedee Hot Springs erupts at 203°F (95°C)—one of the hottest springs in the entire United States—flowing near Janesville in the volcanic highlands of Lassen County at 4,009 feet elevation.

The spring emerges roadside from geothermally active ground in a landscape of volcanic rock and coniferous forest. Steam rises visibly from the thermal discharge, which quickly becomes too hot to touch. Winter brings substantial snowfall of up to 32 inches annually, transforming the high-elevation setting into a snow-covered geothermal anomaly.

History of Amedee Hot Springs

Amedee sits atop the Modoc Plateau volcanic system, an active geothermal zone. The spring's extraordinary heat reflects deep circulation within volcanic rocks, rising 148 degrees above the frigid 54.6-degree annual average. This is a true geothermal hotspot shaped by millions of years of Cascade Range tectonics.

Access is roadside and straightforward, but extreme caution is mandatory. The water is far too hot for any direct contact or bathing. Winter access may be limited by snow; check conditions before visiting. Observe all posted warnings—the thermal danger here is genuine and serious.

Is Amedee Hot Springs worth visiting?

Best for

  • Viewing dramatic geothermal features
  • Easy day trips
  • Overnight camping trips

Not ideal for

  • Swimming or soaking
Amedee Hot Springs is best appreciated as a dramatic geothermal feature rather than a place to soak.
Monthly Climate
35°
Jan
38°
Feb
43°
Mar
51°
Apr
59°
May
70°
Jun
78°
Jul
77°
Aug
69°
Sep
56°
Oct
43°
Nov
35°
Dec
Annual Precip: 14.8 in Annual Snow: 31.8 in
Best Time to Visit
January Air 35°F · Water 203°F · +168° contrast
December Air 35°F · Water 203°F · +168° contrast
February Air 38°F · Water 203°F · +165° contrast
January offers 43°F more contrast than July
Nearby Camping
Black Mountain Lookout 14.5 mi away

Overview Black Mountain Lookout remained closed for the 2020 season and is expected to remain closed into 2021. Closure is due to COVID related demands in maintaining a safe environment for our customers and our staff. Black Mountain Lookout is located on the eastern edge of the Beckwourth Ranger District, 10 miles from Highway 395, near Milford, California. The lookout was constructed in 1934 and is a great example of Civilian Conservation Corps (CCC) architecture. The C-3-type lookout is si...

Reservable Yes
Reserve on Recreation.gov →
What to Bring
Swimsuit & towel
Water bottle Stay hydrated, especially in hot water
Camping gear Nearby camping at Black Mountain Lookout
Trash bag Pack out what you pack in
Water shoes Hot ground near source
References
USGS Quad: WENDEL 15 · PP 492: 31.0 · Circ 790: 42.0 · NOAA: 5.0 · AMS Map: SUSANVILLE
Frequently Asked Questions
What is the water temperature at Amedee Hot Springs?
Amedee Hot Springs has a water temperature of 203°F (95°C). This is considered a hot spring, well above body temperature.
Where is Amedee Hot Springs located?
Amedee Hot Springs is located in Lassen County, California at 4,009 feet elevation, near Janesville. Coordinates: 40.3020°N, 120.1950°W.
How do I get to Amedee Hot Springs?
Amedee Hot Springs has Roadside road access (280 ft from the road).
Can I camp near Amedee Hot Springs?
Yes, Black Mountain Lookout is located nearby (14.5 miles away).
Is it safe to soak at Amedee Hot Springs?
The water at Amedee Hot Springs reaches 203°F, which can cause severe burns. Do not enter the source pool directly — look for cooled side pools or downstream areas where the water has cooled to a safe temperature. Access may be on private land or unconfirmed — verify current conditions before visiting. Always tell someone your plans before visiting remote hot springs.
Is Amedee Hot Springs crowded?
Amedee Hot Springs 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 Amedee Hot Springs?
Essentials for Amedee Hot Springs: swimsuit, towel, water bottle, camping gear, a trash bag to pack out what you pack in. The water is over 110°F — test the temperature before entering and watch for scalding near the source.
Temperature
203°F
Warm Hot Boiling
Water Temp 203°F (95°C)
Avg Air Temp 55°F
Above Ambient +148°F
Access
Road Access Roadside
Distance to Road 280 ft