Rocky Gorge Reservoir   Be the first to submit input for Rocky Gorge Reservoir. If you have info on Rocky Gorge Reservoir, Steens Mountains, Harney County, Oregon please submit it here to improve this web site.          These outdoors activities are available near Rocky Gorge Reservoir.   Hiking Trails Near Rocky Gorge Reservoir: The Beef Trail, Harney County, 5 miles away       5 hiking miles, 644 feet elevation difference