Flat Top Reservoir   Be the first to submit input for Flat Top Reservoir. If you have info on Flat Top Reservoir, Owyhee County, Idaho please submit it here to improve this web site.          These outdoors activities are available near Flat Top Reservoir.   Ski Areas Near Flat Top Reservoir: Bogus Basin, Idaho, 88 miles away       1800 foot drop, 7 lifts, 52 runs   Whitewater Near Flat Top Reservoir: Owyhee River, OwyheeCounty, 8 miles away       Class III - 36 miles long (Crutcher's Crossing to Three Forks) Deep Creek, OwyheeCounty, 12 miles away       Class I-II - 39 miles long (Mudflat Road to Rickard Crossing Owyhee River) Owyhee River - South Fork, OwyheeCounty, 19 miles away       Class II-III - 36 miles long (El Paso pipeline)