RUSH CREEK (Erath County). Rush Creek rises six miles west of Hannibal in northwestern Erath County (at 32°20' N, 98°27' W) and runs eight miles northwest to its mouth on the South Fork of Palo Pinto Creek, eight miles east of Ranger in northeastern Eastland County (at 32°28' N, 98°29' W). Variable terrain in the area is surfaced by shallow clay loam that supports grasses and shrubs.