State Route 137 is a southwest-to-northeast state highway in west-central Georgia. The route begins in Cusseta on an easterly jaunt through the southern portion of Fort Benning and Marion County before reaching Buena Vista. From here, the route heads northeast through Tazewell, Charing, and Butler. From Butler, the route travels north to its intersection with SR 208, then turns due east until ending at its junction with SR 128 in Taylor County just south of the Flint River.