# Sulphur Caldron, Wyoming

Sulphur Caldron in Wyoming. 190°F (88°C). Roadside · Public Land. Gallatin County.

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

## Can you soak at Sulphur Caldron?

Not at the source. The water leaves the ground at 190°F, hot enough to burn skin. You can drive right up to it. It's on National Park Service land.

## Key facts

| Fact | Value |
|---|---|
| Source water temperature | 190°F (88°C) (USGS record; developed pools are often cooled) |
| Elevation | 7,728 ft |
| Access | Roadside · Public Land, 102 ft from the nearest road (Grand Loop Road) |
| Land | Yellowstone National Park, National Park Service |
| County | Gallatin County |
| Nearest town | West Yellowstone |
| Coordinates | 44.62800, -110.43300 |
| Best months to soak | December, January, February (largest gap between water and average air temperature) |
| Nearest campground | Tower Fall Campground, 18.2 mi |

## Soaking safety

**Very Hot Source, Use Extreme Caution.** At 190°F, the source water at Sulphur Caldron 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 Sulphur Caldron

Sulphur Caldron sits maybe a hundred feet from Grand Loop Road, inside Yellowstone. Scalding. Its name tells you about as much as anyone knows, since the record holds a temperature and a position and stops there. The Park Service holds this ground in Gallatin County and lets people in. No town sits closer than West Yellowstone.

Roadside access from the Grand Loop Road, a hundred feet or so. Elevation around 7,700 feet. This is one of the drier points in the park by the figures on file, with snowfall near ten and a half feet and an annual average temperature of about 34. National park land. Nothing else on record describes the surroundings.

Scalding water. Stay on the viewing area and keep children close. The winter months rank as best on record; the Grand Loop Road may or may not be drivable then, so confirm. Tower Fall Campground, about eighteen miles off, is the camp on record. No fee listed.

## Nearby

- Nearest city page: [Hot springs near Cody](https://www.soakingsprings.com/hot-springs/near/wyoming/cody), 62 mi away
- State page: [Hot springs in Wyoming](https://www.soakingsprings.com/hot-springs/wyoming)
- [Mud Volcano, WY](https://www.soakingsprings.com/hot-springs/wyoming/mud-volcano): 131°F source, Roadside, near West Yellowstone, Gallatin County
- [Mud Geysers, WY](https://www.soakingsprings.com/hot-springs/wyoming/mud-geysers): Hot, Short Walk, near West Yellowstone, Gallatin County
- [Hot Springs, WY](https://www.soakingsprings.com/hot-springs/wyoming/hot-springs-gallatin-county-1): Hot, Short Walk, near West Yellowstone, Gallatin County
- [Sulphur Springs, WY](https://www.soakingsprings.com/hot-springs/wyoming/sulphur-springs-4): 194°F source, Short Walk, near West Yellowstone, Gallatin County
- [Hot Springs On Bog Creek, WY](https://www.soakingsprings.com/hot-springs/wyoming/hot-springs-on-bog-creek-1): 199°F source, Hike, near West Yellowstone, Gallatin County
- [Ebro Springs, WY](https://www.soakingsprings.com/hot-springs/wyoming/ebro-springs): 136°F source, Hike, near West Yellowstone, Gallatin County

## Questions

**What is the water temperature at Sulphur Caldron?**
Sulphur Caldron has a water temperature of 190°F (88°C). This is considered a hot spring, well above body temperature.

**Where is Sulphur Caldron located?**
Sulphur Caldron is located in Gallatin County, Wyoming at 7,728 feet elevation, near West Yellowstone. Coordinates: 44.6280°N, 110.4330°W.

**How do I get to Sulphur Caldron?**
Sulphur Caldron has Roadside road access, with the nearest road being Grand Loop Road (102 ft from the road).

**Is Sulphur Caldron free to visit?**
Sulphur Caldron has Open access. It is managed by National Park Service.

**Can I camp near Sulphur Caldron?**
Yes, Tower Fall Campground is located nearby (18.2 miles away).

**Is it safe to soak at Sulphur Caldron?**
No, not at the source. The water at Sulphur Caldron reaches 190°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