Vaughn Hot Spring is located in Valley County, Idaho, a mountainous, forested region of the American West. This open-air thermal spring, with a pH of 7.3, forms a natural pool suited to wild bathing.
Insider tip — Vaughn Hot Spring in Valley County, Idaho — backcountry geothermal spring in the Salmon River Mountains of central Idaho. Part of the extensive cluster of wild hot springs in the Warm Lake/Middle Fork drainage. Free undeveloped soaking accessible via forest roads.