...with an interior loop of 72 miles, is the longest paved loop trail in the nation. Two direct extensions also extend from the trail, one to Jefferson and the other to Urbandale near Des Moines. This trail has been coined "the quintessential Central Iowa experience" and hosts over 350k visitors per year. Aside from cyclists, the trail is used by joggers, hikers, snowmobilers, cross-country skiers, and more.