SCHEP CREEK. Schep Creek rises two miles west of Cannon Mountain in southern Mason County (at 30°30' N, 99°14' W) and runs northeast for fourteen miles to its mouth on the Llano River, three miles east of the James River (at 30°37' N, 99°13' W). Approximately 3½ miles downstream the creek has been dammed to form a small body of water called Coyote Lake. Rising in the limestone hills on the eastern edge of the Edwards Plateau, the creek crosses an area characterized by flat to rolling terrain and shallow clayey and loamy soils. Vegetation consists primarily of brush, grasses, some mesquite, and open stands of live oak and Ashe juniper.