Legend has it that mountain biking was born in the hills of Crested Butte. The sport returns to its roots with the inaugural Crested Butte Big Mountain Enduro, a five-day race reserved for only the strongest of mountain bikers. The course takes riders up and down 20,000+ feet of elevation over some of the most challenging and scenic trails in the country. While the race is limited to professionals, spectators of all ages can feel the excitement of the Mountain Bike Hall of Fame in the heart of Crested Butte. Wed-Sun, times vary.