Country/territory: China (mainland)
Central coordinates (latitude / longitude): 33°49'59"N (33.8333°) / 103°40'00"E (103.6667°)
Area (reported): 440,000 hectares / 4,400.00 km² / 1,087,264 acres / 1,698.85 square miles
Area (GIS-derived): 407,542 hectares / 4,075.42 km² / 1,007,058 acres / 1,573.53 square miles
Altitude: 1200–4504 m (3,936–14,774 ft)