3 natural hot springs within 50 miles of Boulder, Colorado — sorted by driving distance from the city center. Each listing links to its full guide with water temperature, access type, and seasonal conditions.
Last updated: October 2026
Researched & maintained by Chester Beard · Conservation Photographer · Sierra Club, The Nature Conservancy
Data from USGS, OpenStreetMap, NOAA · Disclosure
Colorado · 76°F · Drive-up
6.6 mi
Colorado · 98°F · Drive-up
24.1 mi
Colorado · 110°F · Resort
45.6 mi