Willow Tanks is a reservoir located in Hudspeth County, Texas. It appears on the T P Well USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 4,272.17 feet (1,302.16 m) above sea level. The nearest populated place is Cattleman's North Ranchos Number 2 Colonia, approximately 9.0 miles to the W.