Rock Island is a populated place located in Colorado County, Texas. It appears on the Rock Island USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 246.06 feet (75.00 m) above sea level.
Colorado County · Texas
Rock Island is a populated place located in Colorado County, Texas. It appears on the Rock Island USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 246.06 feet (75.00 m) above sea level.