OATMAN CREEK. Oatman Creek rises 1½ miles north of Oxford in central Llano County (at 30°38' N, 98°43' W). It was no doubt named for a family prominent in Llano County from the early days of its settlement; the Oatman family included Clement Oatman, who was appointed commissioner to establish the county in 1856. The creek follows a northerly course for 11½ miles to its mouth on the Llano River, immediately east of Llano at the town's sewage disposal plant (at 30°45' N, 98°39' W). It traverses areas of the Llano Basin characterized by flat to rolling to steep terrain covered with soils ranging from shallow and stony to sandy and clay loams. Vegetation consists primarily of open stands of live oak and mesquite.