Thermo Hot Springs
Thermo Hot Springs erupts at 181 degrees Fahrenheit near Milford in Beaver County, ranking among Utah's hottest documented thermal features with water emerging 126.9 degrees above ambient air temperature. This exceptional geothermal system flows at 5,045 feet elevation just 43 meters from the nearest road, delivering sulfate-dominant water with 1,490 milligrams per liter of total dissolved solids.
The spring emerges in the Escalante Desert at 5,045 feet elevation, where basin-and-range topography defines the landscape of western Beaver County. The surrounding terrain receives minimal precipitation at 8.6 inches annually with 23.1 inches of snow, supporting sparse desert vegetation dominated by shadscale, greasewood, and scattered sagebrush. The Mineral Mountains rise to the east while flat basin floors extend westward toward the Wah Wah Range, creating the characteristic open desert setting of Utah's Great Basin province.
Approach with extreme caution; 181-degree water causes severe burns on contact and steam vents present scalding hazards. The roadside location permits easy observation but prohibits safe bathing. Visit during cooler months when desert conditions moderate, though the spring flows year-round. Bring adequate water and sun protection for the exposed desert environment. Hanging Rock Campground provides developed facilities 29.4 kilometers away along the Beaver River.
The spring's name reflects the geothermal properties that have attracted attention since early settlement, with temperature being the defining characteristic. The location supported various geothermal exploration and development schemes across the 20th century, though large-scale commercial power generation never materialized. The site remains notable primarily for its exceptional heat output among Utah thermal springs.
The water at Thermo Hot Springs is slightly alkaline (pH 7.4) with 1490 mg/L total dissolved solids. It is notably rich in sodium (supports circulation and skin hydration), sulfate (traditionally used for skin conditions and inflammation), and chloride (natural antiseptic with skin health benefits).
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Overview Hanging Rock Campground is located just off of Highway 21 between the towns of Beaver and Minerville, UT. The campground has six campsites all located alongside the scenic Beaver River. Along with the scenery that the river provides, it also offers what many consider to be the best fising in Beaver County. Recreation The Beaver River provides opportunity for year-round fishing. The Paiute ATV Trail and Beaver Bench Mountain Bike Trail System are located just down the road in Beaver,...
Thermo Hot Springs is road-accessible, so you can bring more gear. The water is dangerously hot — bring water shoes and test pools carefully.
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