Country/territory: Nigeria
Central coordinates (latitude / longitude): 12°39'00"N (12.6500°) / 010°33'00"E (10.5500°)
Area (reported): 350,000 hectares / 3,500.00 km² / 864,869 acres / 1,351.36 square miles
Area (GIS-derived): 279,548 hectares / 2,795.48 km² / 690,778 acres / 1,079.34 square miles
Altitude: 152–305 m (499–1,000 ft)