Kerby Tank is a reservoir located in El Paso County, Texas. It appears on the Hueco Tanks USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 4,153.54 feet (1,266.00 m) above sea level. The nearest populated place is Hueco Mountain Estates Number 8 Colonia, approximately 3.9 miles to the SSE.