East Horse Basin Reservoir   Be the first to submit input for East Horse Basin Reservoir. If you have info on East Horse Basin Reservoir, Owyhee County, Idaho please submit it here to improve this web site.          These outdoors activities are available near East Horse Basin Reservoir.   Ski Areas Near East Horse Basin Reservoir: Bogus Basin, Idaho, 94 miles away       1800 foot drop, 7 lifts, 52 runs   Whitewater Near East Horse Basin Reservoir: Owyhee River - South Fork, OwyheeCounty, 9 miles away       Class II-III - 36 miles long (El Paso pipeline) Owyhee River - East Fork, OwyheeCounty, 16 miles away       Class II - 50 miles long (Duck Valley to Crutcher's Crossing)