Unnamed Thermal Spring
This unnamed 70°F spring flows in Summit County near Snyderville, emerging 27.8 degrees above the 42.2°F ambient temperature at 6,790 feet elevation. The source sits on city-owned conservation land (McMillan Round Valley LCA) under permanent protection with restricted public access. Located 1,047 meters from the nearest road, the spring requires a short walk through protected terrain.
The spring occupies mountain valley habitat in the Wasatch Range where annual precipitation reaches 25.3 inches and snowfall totals 105 inches. Elevation and moisture support aspen groves, sagebrush meadows, and mixed conifer stands. The protected landscape designation preserves open space amid rapid development in the greater Park City area. Terrain includes rolling hills and valley bottoms with seasonal wetlands fed by snowmelt and spring discharge.
No historical name is recorded for this spring. The McMillan Round Valley area was historically used for livestock grazing before conservation acquisition by local government. The current protection status (category 2) reflects permanent conservation easements or public ownership established in recent decades to preserve open space as the Wasatch Back urbanized.
Access is restricted—verify permissions with Park City authorities before visiting. Winter access (November–April) is difficult due to heavy snow. The spring's 70°F temperature provides modest warmth. Redman Campground in Big Cottonwood Canyon, 12.2 kilometers away at 8,300 feet, offers developed camping. Altitude effects are moderate; visitors from low elevations should acclimate gradually.
Is this spring worth visiting?
Best for
- Overnight camping trips
Overview Redman Campground is located in scenic Big Cottonwood Canyon at an elevation of 8,300 feet. Salt Lake City is conveniently close. Visitors enjoy hiking, biking and fishing.Recreation Hiking and mountain biking are popular activities on area trails, including the Donut Falls Trail, which begins nearby. Fly-fishermen enjoy casting on Big Cottonwood Creek.Facilities The campground contains two group sites and numerous single, double, and triple-family sites, all with picnic tables and c...