Rock Creek is a 56-mile (90 km) intermittent stream flowing in Lake and Harney counties in the U.S. state of Oregon. The source of Rock Creek is at an elevation of 6,914 feet (2,107 m) on Hart Mountain, while the mouth is at an elevation of 4,557 feet (1,389 m) in the Catlow Valley. Rock Creek has a 269-square-mile (700 km2) watershed.