 The terrain consists of low rolling hills, partly wooded, carved with drainages and gullies, and with all available area devoted to agriculture.It generally slopes to the south, and slopes to the river valley from both east and west borders, with its highest point on the Camp Ripley Military Reservation, 2.4 miles (3.9 km) east and 1.4 mile (2.2 km) north of the east end of Lake Alexander, at 1,521' (463m) ASL.The county has an area of , of which is land and (2.5%) is water.