Roystone Hot Springs
Near Sweet, Idaho
Not yet verified by our team 151° Too hot to touch (130°F+)
Roystone Hot Springs is a developed hot spring near Sweet, Idaho. NOAA's thermal springs survey recorded a maximum surface temperature of 151°F (66°C) at the source; soaking pools are usually cooler.
We haven't verified this spring yet. Details come from the 1980 NOAA survey and public listings, and some springs have since closed, been developed or become private. Been here recently? Tell us what you found.