Natural hot spring · Idaho
Marsh Creek Hot Spring
Cassia County, Idaho · 14 miles southeast of Rupert, ID
Last updated
- Type
- Natural Natural hot spring
- Water temperature
- 104°F (40°C) at the source
- Cost
- Not recorded
- Hours or season
- Not recorded
- Clothing
- Not recorded
- Nearest town
- Rupert, ID (14 mi / 23 km)
- Coordinates
- Pools or sources
- 1
- Historical record only: this spring has not been confirmed on the ground since 1981 and may be on private land.
About Marsh Creek Hot Spring
Marsh Creek Hot Spring is a natural hot spring in Cassia County, Idaho, about 14 miles southeast of Rupert, ID. The nearest large city is Twin Falls, ID, roughly 48 miles away as the crow flies.
The temperature at the source has been recorded at 104°F (40°C). That puts it in the "classic hot-tub range" range. The range most soakers aim for. 104°F is the upper limit the US Consumer Product Safety Commission recommends for hot tubs.
It is a natural spring with little or no development. Some natural springs have rock pools you can sit in, while others are too hot, too shallow or on land where soaking is not allowed.
This spring comes from the US federal Thermal Springs List compiled in 1981. Nobody has confirmed it on the ground for this directory since, so treat the details as historical. Many springs on that list sit on private ranch land, so never visit without permission.
Water temperature
Classic hot-tub range. The range most soakers aim for. 104°F is the upper limit the US Consumer Product Safety Commission recommends for hot tubs.
Readings come from the NOAA thermal springs list, and other public sources. Temperatures change with season, flow and pool design. See our soak temperature guide for safe soaking times.
Map and directions
Red marks Marsh Creek Hot Spring. Other colored dots are nearby springs in this directory. Coordinates: 42.44700, -113.52300.
Getting there
- Nearest town: Rupert, ID. The spring is about 14 miles (23 km) southeast of town in a straight line.
- Nearest large city: Twin Falls, ID, about 48 miles (77 km) in a straight line.
- Planning from a city? See hot springs near Twin Falls, ID.
- Use the directions buttons above for a driving route. Final roads to many springs are unpaved, seasonal or closed in winter, so check road conditions before you go.
Weather forecast
Live forecast for this exact spot from the US National Weather Service.
Hot springs near Marsh Creek Hot Spring
- Marsh Gully Hot Springs 106°F
- Oakley Hot Spring 118°F
- Artesian City Hot Springs 99°F
- Rockland Warm Springs 100°F
- Nile Spring 109°F
- Gambles Hole 104°F
Before you go
- Check the operator, land manager or park website for current hours, fees and closures. Details in any directory can go out of date.
- Pack out everything you bring, including food scraps. Do not use soap in natural pools.
- Keep your head above water. Warm fresh water can carry Naegleria fowleri, a rare but deadly amoeba that enters through the nose.
- Drink water, limit soaks to 10 to 20 minutes at a time in very hot water, and skip alcohol.
- Read our hot spring etiquette guide and safety guide.
Frequently asked questions
How hot is Marsh Creek Hot Spring?
The temperature at the source has been recorded at 104°F (40°C), which is classic hot-tub range. The range most soakers aim for. 104°F is the upper limit the US Consumer Product Safety Commission recommends for hot tubs.
Where is Marsh Creek Hot Spring?
Marsh Creek Hot Spring is in Cassia County, Idaho, about 14 miles southeast of Rupert, ID. The GPS coordinates are 42.4470, -113.5230.
Can you soak at Marsh Creek Hot Spring?
Natural springs vary. Some have pools built by visitors, others are too hot or shallow, and some are on private land or in areas where bathing is banned. Check local rules and test the water before you get in.
What hot springs are near Marsh Creek Hot Spring?
The closest listed spring is Marsh Gully Hot Springs, about under 1 mile east. Oakley Hot Spring is about 26 miles away.
What should I bring to a hot spring?
Water to drink, a towel, sandals with grip, a bag to pack out trash, and warm layers for after your soak. At primitive springs bring a headlamp and tell someone where you are going.
Sources and corrections
This listing combines the NOAA NCEI Thermal Springs List. Data last refreshed August 2026. Source 1
Visited recently? Send a correction, such as a temperature reading, fee, closure or photo. If you look after this spring and want it removed, see removal requests.