"Where will your next trail shoes take you? Combining the joys of hiking and peak-bagging with the thrill of moving fast and covering lots of ground, high-mountain trail running is more popular than ever. Colorado Alpine Trail Runs makes it easy to find great places to run in the mountains. This essential guide features rugged trails and majestic vistas across Colorado, including 45 spectacular routes that vary in length from 4 to 30 miles, with options from mellow to challenging to suit a host of skill levels. Every route reaches an elevation over 15,000 feet and includes at least one alpine pass, lake, or summit. Organized by geographical area to make it easy to find the best trails across Colorado. Includes key info such as access, route mileage and elevation, directional cues, and difficulty ratings. Provides guidance across responsible outdoor recreation. Discover the best Colorado has to offer with this detailed guide to mountain routes that no trail runner should be without." -- From back cover.