Big Boiler
Big Boiler is a geothermal spring in California. It is on private property, so entry needs the owner’s permission.
Facts
- Coordinates
- 40.4579, -121.5018 (Google Maps, OSM)
- Source temperature
- Not recorded
- Access
- Private property
- Type
- Unknown
- Fee
- Not recorded
- Clothing optional
- Not recorded
- Nearest town
- Not recorded
- State
- California
- Data sources
- OpenStreetMap. See sources
Map
Larger marker is Big Boiler; smaller markers are other springs within 50 miles.
Quick answers
- Can you soak at Big Boiler?
- Big Boiler is on private property. Do not enter without the owner’s permission.
- Where is Big Boiler?
- Big Boiler is in California, at coordinates 40.4579, -121.5018.
- What other hot springs are near Big Boiler?
- The closest listed springs, in straight-line distance, are Bumpass Hot Springs, under 1 mi; Bumpass Hell Creek, under 1 mi; and Turquoise Pool, under 1 mi.
Before you go
- Temperatures are measured at the source and can be far hotter than any soaking pool. Test with a hand before stepping in.
- Access, fees, and road conditions change. Verify with the land manager or owner; "public" here reflects survey records, not a current right of entry.
- Water in natural springs is untreated. Keep your head above water and avoid soaking with open wounds. Some springs carry Naegleria fowleri risk.
- Pack out everything, including soap residue. Many springs have been closed because of trash and overcrowding.
Sources
Dataset last rebuilt October 11, 2026. Not yet checked on site by a person. Access, fee, clothing and closure details appear only when a source below states them. How this data is built.
Merged from
- OpenStreetMap: mapped feature and its tags, ODbL