
Located at 1,650 meters (5,430 ft) at the base of the Rocky Mountains, Boulder is one of the world’s most iconic endurance training destinations for runners, triathletes, and cyclists. The city blends altitude benefits with an unmatched variety of terrain — flat dirt paths along Boulder Creek Path, rolling gravel roads, and technical mountain trails around Chautauqua Park and the Flatirons.
The periods shown usually offer the most reliable conditions for running in Boulder. Always check the local forecast and any event calendars shortly before you travel.