# Sulphur Creek Hot Spring, Idaho

Sulphur Creek Hot Spring in Idaho. Hot. Short Walk. Valley County.

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

## Can you soak at Sulphur Creek Hot Spring?

USGS lists Sulphur Creek Hot Spring as a hot spring, with no temperature on record. It's a short walk from the road. We haven't confirmed whether it has a pool or charges a fee.

## Key facts

| Fact | Value |
|---|---|
| Source water temperature | Hot (USGS record; developed pools are often cooled) |
| pH | 9.9 (Alkaline) |
| Elevation | 5,740 ft |
| Access | Short Walk, 0.2 mi from the nearest road |
| County | Valley County |
| Nearest town | Cascade |
| Coordinates | 44.55400, -115.30100 |
| Nearest campground | BOUNDARY CREEK CAMPGROUND, 1.6 mi |

## About Sulphur Creek Hot Spring

One of two Idaho springs on this site called Sulphur Creek Hot Spring, this one is in Valley County about 37 miles from Cascade. No temperature is recorded, only the word hot, so do not plan a soak on the strength of the name. It sits some 350 yards from a road. Land owner and access are not on record.

High country at around 5,700 feet with heavy snow, about 175 inches a year on average, and a year-round mean near forty. Precipitation is a little over thirty inches. The road sits about 350 yards off, though nothing says which road it is or who owns the ground, and no fee is on record.

Best months are not given. Boundary Creek Campground is close, about 1.6 miles away. The only hard data is a USGS water sample from June 1980 showing very alkaline water with no temperature attached. Confirm access and ownership before you go. The USGS assigned it a site number.

## Water chemistry

Lab sample from 1980-06-24 (Water Quality Portal).

| Measure | Value |
|---|---|
| pH | 9.9 |
| Calcium | 2.1 mg/L |
| Sodium | 59 mg/L |
| Sulfate | 32 mg/L |
| Chloride | 8.5 mg/L |

Records this spring holds:
- Tied for most alkaline of the 654 US springs with a pH reading: pH 9.9 (also a US record)

## Nearby

- Nearest city page: [Hot springs near Challis](https://www.soakingsprings.com/hot-springs/near/idaho/challis), 31 mi away
- State page: [Hot springs in Idaho](https://www.soakingsprings.com/hot-springs/idaho)
- [Dagger Creek Hot Spring, ID](https://www.soakingsprings.com/hot-springs/idaho/dagger-creek-hot-spring): 110°F source, pH 9.9, Short Walk, near Cascade, Valley County, primitive pools, pools 100–104°F, late jul-oct
- [Sheepeater Hot Springs, ID](https://www.soakingsprings.com/hot-springs/idaho/sheepeater-hot-springs): Hot, pH 9.5, Hike, near Cascade, Valley County, primitive pools, pools 103°F, free, late may-sep (river permit season)
- [Bear Valley Hot Spring, ID](https://www.soakingsprings.com/hot-springs/idaho/bear-valley-hot-spring): Warm, pH 9.5, Hike, near Cascade, Valley County, primitive pools, pools 104°F, free, apr-oct
- [Sulphur Creek Hot Spring, ID](https://www.soakingsprings.com/hot-springs/idaho/sulphur-creek-hot-spring-2): Hot, Hike, near Challis, Custer County
- [Pistol Creek Hot Springs, ID](https://www.soakingsprings.com/hot-springs/idaho/pistol-creek-hot-springs): 115°F source, pH 9.6, Hike, near Cascade, Valley County
- [Cape Horn Warm Springs, ID](https://www.soakingsprings.com/hot-springs/idaho/cape-horn-warm-springs): 95°F source, pH 9.6, Short Walk, near Idaho City, Boise County

## Questions

**What is the water temperature at Sulphur Creek Hot Spring?**
Sulphur Creek Hot Spring is classified as hot. An exact temperature measurement has not been recorded.

**Where is Sulphur Creek Hot Spring located?**
Sulphur Creek Hot Spring is located in Valley County, Idaho at 5,740 feet elevation, near Cascade. Coordinates: 44.5540°N, 115.3010°W.

**How do I get to Sulphur Creek Hot Spring?**
Sulphur Creek Hot Spring has Short Walk road access (0.2 mi from the road).

**Can I camp near Sulphur Creek Hot Spring?**
Yes, Boundary Creek Campground is located nearby (1.6 miles away).

**What minerals are in the water at Sulphur Creek Hot Spring?**
Water chemistry analysis shows the presence of pH, Calcium, Sodium, Sulfate, Chloride. The pH is 9.9 (alkaline).

## Sources

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