Whitegrass-Waterhole Creeks Site 9 Reservoir is a reservoir located in McCurtain County, Oklahoma. It appears on the Garvin USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 367.07 feet (111.88 m) above sea level. The nearest populated place is Iron Stob Corner, approximately 1.0 miles to the NNW.