Rock Island is a populated place located in Waller County, Texas. It appears on the Daniels USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 187.73 feet (57.22 m) above sea level.
Waller County · Texas
Rock Island is a populated place located in Waller County, Texas. It appears on the Daniels USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 187.73 feet (57.22 m) above sea level.