Cowan Reservoir   Be the first to submit input for Cowan Reservoir. If you have info on Cowan Reservoir, Owyhee County, Idaho please submit it here to improve this web site.          These outdoors activities are available near Cowan Reservoir.   Public Lands Near Cowan Reservoir: Humboldt National Forest, Nevada, 32 miles away Hagerman Fossil Beds National Monument, Hagerman - ID, 61 miles away   Hiking Trails Near Cowan Reservoir: Tiguero Trail, Owyhee County, 9 miles away   Ski Areas Near Cowan Reservoir: Soldier Mountain, Idaho, 88 miles away       1425 foot drop, 3 lifts, 36 runs Magic Mountain, Idaho, 89 miles away       700 foot drop, 3 lifts, 13 runs Bogus Basin, Idaho, 93 miles away       1800 foot drop, 7 lifts, 52 runs   Whitewater Near Cowan Reservoir: Bruneau River - West Fork, OwyheeCounty, 11 miles away       Class IV-V - 28 miles long (Below Rowland Nevada to Indian Hot Springs) Bruneau River - West Fork, ElkoCounty, 11 miles away       Class IV-V - 19 miles long (Rowland Nevada to Blackrock Crossing Idaho) Jarbidge, OwyheeCounty, 13 miles away       Class II-V - 29 miles long (Murphy Hot Springs to Bruneau River)