YELLOW BAYOU. Yellow Bayou rises five miles west of Wiergate in northern Newton County (at 31°00' N, 93°47' W). Intermittent in its upper reaches, the watercourse follows a westerly course for thirteen miles to its mouth on Little Cow Creek, five miles northwest of that creek's junction with the Sabine River (at 30°58' N, 93°37' W). Yellow Bayou flows through gently undulating terrain used largely as pasture and woodland, with loblolly and shortleaf pines the dominant trees.