Antelope Reservoir   Be the first to submit input for Antelope Reservoir. If you have info on Antelope Reservoir, Malheur County, Oregon please submit it here to improve this web site.          These outdoors activities are available near Antelope Reservoir.   Public Lands Near Antelope Reservoir: Lake Owyhee State Park, Oregon, 37 miles away   Whitewater Near Antelope Reservoir: Owyhee River, MalheurCounty, 19 miles away       Class III-IV(V) - 37 miles long (Three Forks to Rome) Owyhee River, -blank-County, 19 miles away       Class III+(V+) - 65 miles long (Garat Crossing to Three Forks)