3 springs within 40 miles
Hot springs near Kremmling
3 hot springs are within 40 miles of Kremmling: the closest is Radium Warm Springs (under 1 mi), the hottest is Hot Sulphur Springs Resort & Spa (up to 112°F), and the lowest listed adult price is Hot Sulphur Springs Resort & Spa ($30). Distances are straight-line; driving distances in the mountains can be much longer.
Radium Warm Springs
A warm spring pool above the Upper Colorado River near the hamlet of Radium, southwest of Kremmling. The BLM directs visitors to a trailhead at the end of Warm Springs Road, because the old social trail from the CPW Mugrage site is closed to protect bighorn sheep habitat. A fee campground and river access are nearby at the Radium Recreation Area.

Hot Sulphur Springs Resort & Spa
A long-running hillside resort in the town of Hot Sulphur Springs with about 19 public mineral pools between 98 and 112°F. Day passes are walk-in only, and some pools are restricted to ages 12 and up. The property also has a motel, private baths, massage and a grill.

Old Town Hot Springs
A non-profit community hot springs and fitness center in downtown Steamboat Springs, fed by the Heart Spring, which flows at about 102-103°F. Alongside several soaking pools and a cold plunge it has water slides, lap swimming, a gym and a climbing wall. Day admission is walk-in.