Dollar Mountain is home to a maze of beautiful hiking trails with three trailheads. Mountain Bikes are not allowed. Dollar, Quarter Dollar, and Half Dollar are the ski slopes where individuals come to learn how to ski in Sun Valley. Historic Dollar Mountain is also the home to the World’s First Chair Lift built back in 1936. History Link. All trails sit on private property and it is a privilege, not a right to access them. The star attraction is a 2.25 mile loop with an elevation gain of 750 feet. (See Elevation Map)