Country/territory: China (mainland)
Central coordinates (latitude / longitude): 29°10'00"N (29.1667°) / 116°00'00"E (116.0000°)
Area (reported): 464,664 hectares / 4,646.64 km² / 1,148,210 acres / 1,794.08 square miles
Area (GIS-derived): 395,319 hectares / 3,953.19 km² / 976,854 acres / 1,526.33 square miles
Altitude: 12–30 m (39–98 ft)