America's Wildest Hotels
Devil's Thumb Ranch, Colorado
An hour outside of Denver, this 5,000-acre ranch offers snowmobile trails in winter and private access to parts of the Colorado River for fly-fishing and white-water rafting in summer. In lieu of electric heating and cooling, the 16 cabins use geothermal energy and feature fireplaces that burn wood from the ranch. From $143; devilsthumbranch.com.
Photo Courtesy of Devil's Thumb Ranch