# Guyer Hot Springs, Idaho

Guyer Hot Springs in Idaho. 158°F (70°C). Roadside. Blaine County.

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

## Can you soak at Guyer Hot Springs?

Not at the source. The water leaves the ground at 158°F, hot enough to burn skin. You can drive right up to it.

## Key facts

| Fact | Value |
|---|---|
| Source water temperature | 158°F (70°C) (USGS record; developed pools are often cooled) |
| pH | 9.1 (Alkaline) |
| Elevation | 5,920 ft |
| Access | Roadside, 22 ft from the nearest road (Warm Springs Road) |
| County | Blaine County |
| Nearest town | Ketchum |
| Coordinates | 43.68400, -114.41000 |
| Best months to soak | December, January, February (largest gap between water and average air temperature) |
| Nearest campground | NORTH FORK (ID), 7.3 mi |

## Soaking safety

**Very Hot Source, Use Extreme Caution.** At 158°F, the source water at Guyer Hot 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 Guyer Hot Springs

Guyer Hot Springs comes up about two miles outside Ketchum in Blaine County, Idaho, close enough to town that it barely counts as a drive. The water is the thing to know about. The survey on file puts it far above anything a person could sit in, hot enough to scald on contact. Public access at the source is not recorded, and no land owner is listed, so check on both before treating it as somewhere to visit.

Warm Springs Road runs right past it, and the source sits a few steps off the pavement. You barely leave the car. This is mountain country around Ketchum, high enough that the winters are long and cold, and the snowfall on file is heavy, over nine feet in an average year. Summers stay short and fairly dry. Nobody has recorded who manages the ground around the spring.

The record lists winter as the best season. Do not put a hand in it. At the temperature on record this water will burn skin in seconds, and any soak would depend on cooling it, which nothing on file says is possible. North Fork is the closest campground in the record, roughly seven miles off. Check access before you go, since the public's standing at the source is unrecorded, and the chemistry reading dates to 1988.

## Water chemistry

Lab sample from 1988-05-03 (Water Quality Portal).

| Measure | Value |
|---|---|
| pH | 9.1 |
| Calcium | 2.3 mg/L |
| Magnesium | 5.9 mg/L |
| Sodium | 88 mg/L |
| Sulfate | 76 mg/L |
| Chloride | 11 mg/L |

## Nearby

- Nearest city page: [Hot springs near Hailey](https://www.soakingsprings.com/hot-springs/near/idaho/hailey), 9 mi away
- State page: [Hot springs in Idaho](https://www.soakingsprings.com/hot-springs/idaho)
- [Warfield Hot Spring, ID](https://www.soakingsprings.com/hot-springs/idaho/warfield-hot-spring): 124°F source, pH 9.0, Roadside, near Ketchum, Blaine County, primitive pools
- [Clarendon Hot Springs, ID](https://www.soakingsprings.com/hot-springs/idaho/clarendon-hot-springs): 126°F source, pH 9.1, TDS 318 mg/L, Roadside, near Hailey, Blaine County
- [Easley Hot Springs, ID](https://www.soakingsprings.com/hot-springs/idaho/easley-hot-springs): 100°F source, pH 9.6, Roadside, near Ketchum, Blaine County, developed pools, $14 day pass
- [Russian John Hot Spring, ID](https://www.soakingsprings.com/hot-springs/idaho/russian-john-hot-spring): 100°F source, pH 9.2, Roadside, near Ketchum, Blaine County, primitive pools, pools 86–105°F, free, year-round
- [Hailey Hot Springs, ID](https://www.soakingsprings.com/hot-springs/idaho/hailey-hot-springs): 131°F source, pH 9.6, TDS 268 mg/L, Short Walk, near Hailey, Blaine County, closed
- [Big Smokey Hot Spring, ID](https://www.soakingsprings.com/hot-springs/idaho/big-smokey-hot-spring): Hot, Hike, near Fairfield, Camas County, primitive pools, pools 102°F, free, jun-oct

## Questions

**What is the water temperature at Guyer Hot Springs?**
Guyer Hot Springs has a water temperature of 158°F (70°C). This is considered a hot spring, well above body temperature.

**Where is Guyer Hot Springs located?**
Guyer Hot Springs is located in Blaine County, Idaho at 5,920 feet elevation, near Ketchum. Coordinates: 43.6840°N, 114.4100°W.

**How do I get to Guyer Hot Springs?**
Guyer Hot Springs has Roadside road access, with the nearest road being Warm Springs Road (22 ft from the road).

**Can I camp near Guyer Hot Springs?**
Yes, North Fork (Id) is located nearby (7.3 miles away).

**What minerals are in the water at Guyer Hot Springs?**
Water chemistry analysis shows the presence of pH, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 9.1 (alkaline).

**Is it safe to soak at Guyer Hot Springs?**
No, not at the source. The water at Guyer Hot Springs reaches 158°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