Oregon End Reservoir   Be the first to submit input for Oregon End Reservoir. If you have info on Oregon End Reservoir, Steens Mountains, Harney County, Oregon please submit it here to improve this web site.          These outdoors activities are available near Oregon End Reservoir.   Hiking Trails Near Oregon End Reservoir: The Beef Trail, Harney County, 17 miles away       5 hiking miles, 644 feet elevation difference