The West Yellowstone Old Faithful Cycle Tour is a terrific way to wind down a summer of riding and a unique way to experience Yellowstone National Park. Fall is a gorgeous time to be in Yellowstone, the elk are bugling, the aspens have turned to gold, and the thermal areas are relatively free of crowds. The supported ride is sixty miles round trip, with options available for one way travel. Cyclists in the tour can take advantage of two feed stations, three sag wagons, on-course bike mechanics, and end the day with a group meal. Families, small groups, and recreational riders are encouraged to participate and enjoy the fall colors of Yellowstone National Park as the 60 mile round-trip bicycle tour takes you past geysers, thermal features, bison and bugling elk.
http://www.cycleyellowstone.com/