Natural hot spring · California
Crabtree Hot Springs
Lake County, California · 10 miles northeast of Upper Lake, CA
Last updated
- Type
- Natural Natural hot spring
- Water temperature
- 106°F (41°C) at the source
- Cost
- Not recorded
- Hours or season
- Not recorded
- Clothing
- Not recorded
- Nearest town
- Upper Lake, CA (10 mi / 16 km)
- Coordinates
- Pools or sources
- 1
- Historical record only: this spring has not been confirmed on the ground since 1981 and may be on private land.
About Crabtree Hot Springs
Crabtree Hot Springs is a natural hot spring in Lake County, California, about 10 miles northeast of Upper Lake, CA. The nearest large city is Windsor, CA, roughly 51 miles away as the crow flies.
The temperature at the source has been recorded at 106°F (41°C). That puts it in the "very hot" range. Hotter than a hot tub. Enter slowly, keep soaks short and get out if you feel dizzy.
It is a natural spring with little or no development. Some natural springs have rock pools you can sit in, while others are too hot, too shallow or on land where soaking is not allowed.
This spring comes from the US federal Thermal Springs List compiled in 1981. Nobody has confirmed it on the ground for this directory since, so treat the details as historical. Many springs on that list sit on private ranch land, so never visit without permission.
Water temperature
Very hot. Hotter than a hot tub. Enter slowly, keep soaks short and get out if you feel dizzy.
Readings come from the NOAA thermal springs list, and other public sources. Temperatures change with season, flow and pool design. See our soak temperature guide for safe soaking times.
Map and directions
Red marks Crabtree Hot Springs. Other colored dots are nearby springs in this directory. Coordinates: 39.29200, -122.82100.
Getting there
- Nearest town: Upper Lake, CA. The spring is about 10 miles (16 km) northeast of town in a straight line.
- Nearest large city: Windsor, CA, about 51 miles (82 km) in a straight line.
- Planning from a city? See hot springs near Santa Rosa, CA.
- Use the directions buttons above for a driving route. Final roads to many springs are unpaved, seasonal or closed in winter, so check road conditions before you go.
Weather forecast
Live forecast for this exact spot from the US National Weather Service.
Hot springs near Crabtree Hot Springs
- Champagne Baths Not recorded
- Wilbur Hot Springs 153°F
- Gordon Warm Springs 97°F
- Point Arena Hot Springs 111°F
- Los Guilicos Warm Springs 88°F
- Steep Ravine Hot Spring Not recorded
Before you go
- Check the operator, land manager or park website for current hours, fees and closures. Details in any directory can go out of date.
- Pack out everything you bring, including food scraps. Do not use soap in natural pools.
- Keep your head above water. Warm fresh water can carry Naegleria fowleri, a rare but deadly amoeba that enters through the nose.
- Drink water, limit soaks to 10 to 20 minutes at a time in very hot water, and skip alcohol.
- Read our hot spring etiquette guide and safety guide.
Frequently asked questions
How hot is Crabtree Hot Springs?
The temperature at the source has been recorded at 106°F (41°C), which is very hot. Hotter than a hot tub. Enter slowly, keep soaks short and get out if you feel dizzy.
Where is Crabtree Hot Springs?
Crabtree Hot Springs is in Lake County, California, about 10 miles northeast of Upper Lake, CA. The GPS coordinates are 39.2920, -122.8210.
Can you soak at Crabtree Hot Springs?
Natural springs vary. Some have pools built by visitors, others are too hot or shallow, and some are on private land or in areas where bathing is banned. Check local rules and test the water before you get in.
What hot springs are near Crabtree Hot Springs?
The closest listed spring is Champagne Baths, about 20 miles southwest. Wilbur Hot Springs is about 28 miles away.
What should I bring to a hot spring?
Water to drink, a towel, sandals with grip, a bag to pack out trash, and warm layers for after your soak. At primitive springs bring a headlamp and tell someone where you are going.
Sources and corrections
This listing combines the NOAA NCEI Thermal Springs List. Data last refreshed August 2026. Source 1
Visited recently? Send a correction, such as a temperature reading, fee, closure or photo. If you look after this spring and want it removed, see removal requests.