Coordinates (from WREA, 2011):
Most northerly point: 14°47’29’’ N, 106°02’21’’ E (Ban Topsok, Route 18 A)
Most southerly point: 14°42’01’’ N, 106°08’30’’ E (Phalaybok, marginal forest of Xe Pian)
Most easterly point: 14°43’53’’ N, 106°08’42’’ E (Chong Houay)
Most westerly point: 14°46’16’’ N, 106°02’16’’ E (Ban Kiat Ngong)