Upper Walcot Basin Reservoir   Be the first to submit input for Upper Walcot Basin Reservoir. If you have info on Upper Walcot Basin Reservoir, Owyhee County, Idaho please submit it here to improve this web site.          These outdoors activities are available near Upper Walcot Basin Reservoir.   Whitewater Near Upper Walcot Basin Reservoir: Owyhee River, OwyheeCounty, 9 miles away       Class III - 36 miles long (Crutcher's Crossing to Three Forks) Owyhee River - South Fork, OwyheeCounty, 17 miles away       Class II-III - 36 miles long (El Paso pipeline)