Gartin Reservoir   Be the first to submit input for Gartin Reservoir. If you have info on Gartin Reservoir, Malheur County, Oregon please submit it here to improve this web site.          These outdoors activities are available near Gartin Reservoir.   Whitewater Near Gartin Reservoir: Owyhee River - North Fork, OwyheeCounty, 10 miles away       Class III-IV - 18 miles long (Off Mud Flat Road to Three Forks) Owyhee River, -blank-County, 10 miles away       Class III+(V+) - 65 miles long (Garat Crossing to Three Forks) Owyhee River, MalheurCounty, 10 miles away       Class III-IV(V) - 37 miles long (Three Forks to Rome)