Originating from Martin Luther King Jr. Park, the Crow Creek Greenway is a rail-trail along a tree-lined creek through busy urban areas of Wyoming's capital, Cheyenne. Just after leaving the park, the trail meanders next to the Union Pacific Railroad yard and then continues to follow Crow Creek south through residential and then industrial areas. Nearby is the Francis E. Warren Air Force Base, one of only three strategic missile bases in the U.S.