Sitting precariously on an outcrop above the Crystal River, stands a wooden powerhouse and a true Colorado icon, The Crystal Mill. The mill was originally constructed in 1893 as a power plant for the nearby Sheep Mountain Tunnel in the city of Crystal. It generated compressed air for miners in the nearby silver mines but It fell out of service in 1917 after the mine closed. It remains one of Colorado’s most famous icons and a popular photo destination during Colorado’s peak fall colors. The structure is difficult to reach; a serious 4×4 vehicle or ATV is required.