# Castle Rock Springs, California

Castle Rock Springs in California. 163°F (73°C). Roadside. Lake County.

- Page: https://www.soakingsprings.com/hot-springs/california/castle-rock-springs
- Source: Soaking Springs, researched and maintained by Armen Suny
- Updated: 2026-09-14

## Can you soak at Castle Rock Springs?

Not at the source. The water leaves the ground at 163°F, hot enough to burn skin. You can drive right up to it.

## Key facts

| Fact | Value |
|---|---|
| Source water temperature | 163°F (73°C) (USGS record; developed pools are often cooled) |
| Elevation | 2,380 ft |
| Access | Roadside, 230 ft from the nearest road (Castle Spring Road) |
| County | Lake County |
| Nearest town | Cobb |
| Coordinates | 38.76800, -122.71700 |
| Best months to soak | January, December, February (largest gap between water and average air temperature) |
| Nearest campground | WARM SPRINGS REC AREA, 15.6 mi |

## Soaking safety

**Very Hot Source, Use Extreme Caution.** At 163°F, the source water at Castle Rock 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.

## About Castle Rock Springs

Castle Rock Springs, under five miles from Cobb in Lake County, puts out water far too hot to touch. Castle Spring Road passes roughly two hundred thirty feet off, so there is no hike involved. No owner and no access status on file, and no land unit, which leaves every question about who controls the ground open.

Roadside at a little under twenty-four hundred feet. Winters are wet, thirty inches or so, with a handful of snow inches in a typical year and a mild yearly average in the high fifties. No agency is recorded for the ground. The campground the record finds is a fair drive off, and no fee has been logged anywhere.

The listed months are the winter ones. Warm Springs Rec Area, sixteen miles off, is the campground on record. The water scalds, so looking is the whole activity, and any pool fed by it needs testing before a toe goes in. Ownership and access are unknown; confirm before visiting. No date accompanies the temperature.

## Nearby

- Nearest city page: [Hot springs near Cobb](https://www.soakingsprings.com/hot-springs/near/california/cobb), 1 mi away
- State page: [Hot springs in California](https://www.soakingsprings.com/hot-springs/california)
- [Anderson Springs, CA](https://www.soakingsprings.com/hot-springs/california/anderson-springs-1): 108°F source, Roadside, near Cobb, Lake County
- [Anderson Springs, California, CA](https://www.soakingsprings.com/hot-springs/california/anderson-springs-california): Roadside, near Cobb, Lake County
- [Little Geysers, CA](https://www.soakingsprings.com/hot-springs/california/little-geysers): 210°F source, Short Walk, near Cobb, Lake County
- [Unnamed thermal spring, CA](https://www.soakingsprings.com/hot-springs/california/unnamed-spring-lake-county-4): 120°F source, Short Walk, near Cobb, Lake County
- [Sulphur Creek, CA](https://www.soakingsprings.com/hot-springs/california/sulphur-creek): 120°F source, Roadside, near Cobb, Lake County
- [Harbin Springs, CA](https://www.soakingsprings.com/hot-springs/california/harbin-springs): 120°F source, Roadside, near Middletown, Lake County

## Questions

**What is the water temperature at Castle Rock Springs?**
Castle Rock Springs has a water temperature of 163°F (73°C). This is considered a hot spring, well above body temperature.

**Where is Castle Rock Springs located?**
Castle Rock Springs is located in Lake County, California at 2,380 feet elevation, near Cobb. Coordinates: 38.7680°N, 122.7170°W.

**How do I get to Castle Rock Springs?**
Castle Rock Springs has Roadside road access, with the nearest road being Castle Spring Road (230 ft from the road).

**Can I camp near Castle Rock Springs?**
Yes, Warm Springs Rec Area is located nearby (15.6 miles away).

**Is it safe to soak at Castle Rock Springs?**
No, not at the source. The water at Castle Rock Springs reaches 163°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 thermal springs records, Water Quality Portal lab analyses, OpenStreetMap, Wikipedia/Wikidata, NOAA climate normals
- https://en.wikipedia.org/wiki/Castle_Hot_Springs