East Side Reservoir   Be the first to submit input for East Side Reservoir. If you have info on East Side Reservoir, Malheur County, Oregon please submit it here to improve this web site.          These outdoors activities are available near East Side Reservoir.   Whitewater Near East Side Reservoir: Owyhee River, OwyheeCounty, 16 miles away       Class III - 36 miles long (Crutcher's Crossing to Three Forks)