# Fumaroles, California

Fumaroles in California. Hot. Short Walk · Public Land. Mono County.

- Page: https://www.soakingsprings.com/hot-springs/california/fumaroles-1
- Source: Soaking Springs, researched and maintained by Armen Suny
- Updated: 2026-09-14

## Can you soak at Fumaroles?

No. The water at Fumaroles reaches boiling point, hot enough to scald.

## Key facts

| Fact | Value |
|---|---|
| Source water temperature | Hot (USGS record; developed pools are often cooled) |
| Elevation | 8,167 ft |
| Access | Short Walk · Public Land, 0.3 mi from the nearest road |
| Land | Inyo National Forest, US Forest Service |
| County | Mono County |
| Nearest town | Mammoth Lakes |
| Coordinates | 37.62200, -119.02800 |
| Nearest campground | LAKE MARY CAMPGROUND, 1.6 mi |

## Soaking safety

**Fumarole: Not a Soaking Spring.** Fumaroles is a fumarole, not a traditional hot spring. These geothermal features can be extremely dangerous. Boiling water, toxic gases, and unstable ground are common hazards. Do not attempt to soak.

## About Fumaroles

A group of fumaroles, steam vents with no pool, on Inyo National Forest land about two miles from Mammoth Lakes. Access is open. No water temperature is on file, only a remark that the ground runs hot. Nothing to soak in. The USGS tracks the site. Lake Mary Campground is close.

High in the Sierra, a third of a mile or so from the nearest road, on Inyo National Forest land. Snow is enormous here, around sixteen feet a year, and the cold holds for most of the calendar. Lake Mary Campground and the town of Mammoth Lakes are both near.

No best months are listed. Given the snowfall, time a visit for the snow free months. Forest Service ground, open, with no fee on record. There is no pool and no temperature, so come to look. Lake Mary Campground is right there. The USGS keeps a site record for the vent field.

## Nearby

- Nearest city page: [Hot springs near Clovis](https://www.soakingsprings.com/hot-springs/near/california/clovis), 66 mi away
- State page: [Hot springs in California](https://www.soakingsprings.com/hot-springs/california)
- [Reds Meadow Hot Springs, CA](https://www.soakingsprings.com/hot-springs/california/reds-meadow-hot-springs): 115°F source, pH 6.7, TDS 642 mg/L, Roadside, near Mammoth Lakes, Mono County
- [Unnamed thermal spring, CA](https://www.soakingsprings.com/hot-springs/california/unnamed-spring-mono-county-2): 72°F source, pH 7.5, TDS 1,100 mg/L, Roadside, near Mammoth Lakes, Mono County
- [Fish Creek Hot Springs, CA](https://www.soakingsprings.com/hot-springs/california/fish-creek-hot-springs): 110°F source, pH 6.7, TDS 378 mg/L, Hike, near Mammoth Lakes, Mono County
- [Casa Diablo Hot Springs And Geyser, CA](https://www.soakingsprings.com/hot-springs/california/casa-diablo-hot-springs-and-geyser): 199°F source, pH 6.8, TDS 967 mg/L, Short Walk, near Mammoth Lakes, Mono County
- [Chance Spring, CA](https://www.soakingsprings.com/hot-springs/california/chance-spring): 73°F source, pH 8.7, TDS 1,410 mg/L, Short Walk, near Mammoth Lakes, Mono County
- [Casa Diablo Hot Pool, CA](https://www.soakingsprings.com/hot-springs/california/casa-diablo-hot-pool): 165°F source, pH 7.7, TDS 1,230 mg/L, Short Walk, near Mammoth Lakes, Mono County

## Questions

**What is the water temperature at Fumaroles?**
Fumaroles is classified as hot. An exact temperature measurement has not been recorded.

**Where is Fumaroles located?**
Fumaroles is located in Mono County, California at 8,167 feet elevation, near Mammoth Lakes. Coordinates: 37.6220°N, 119.0280°W.

**How do I get to Fumaroles?**
Fumaroles has Short Walk road access (0.3 mi from the road).

**Is Fumaroles free to visit?**
Fumaroles has Open access. It is managed by US Forest Service.

**Can I camp near Fumaroles?**
Yes, Lake Mary Campground is located nearby (1.6 miles away).

## Sources

- USGS thermal springs records, Water Quality Portal lab analyses, OpenStreetMap, Wikipedia/Wikidata, NOAA climate normals