FLATROCK CREEK (BLANCO COUNTY)
FLATROCK CREEK (Blanco County). Flatrock Creek rises in the Hill Country two miles northeast of the Round Mountain community in northern Blanco County (at 30°26' N, 98°19' W) and runs northeast for eleven miles to its mouth on the Colorado River, just below Marble Falls at the Max Starcke dam in southern Burnet County (at 30°33' N, 98°15' W). Little Flatrock Creek, a tributary, rises near the Blanco-Burnet county line (at 30°28' N, 98°20' W) and runs northeast for six miles to its mouth on Flatrock Creek (at 30°32' N, 98°17' W). Both streams traverse flat to rolling terrain surfaced by clay and loamy soils that support live oak, Ashe juniper, mesquite, and grasses.