BAYOU LOCO. Bayou Loco, also known as Loco Creek, rises just south of Caro in north central Nacogdoches County (at 31°44' N, 94°41' W) and runs southwest for twenty-two miles to its mouth on the Angelina River, three miles west of Procella (at 31°29' N, 94°48' W). The stream has been dammed just north of Farm Road 225 to form Lake Nacogdoches. Bayou Loco is intermittent in its upper reaches. It traverses flat terrain with local shallow depressions, surfaced by clay and sandy loam that supports water-tolerant hardwoods, conifers, and grasses.