Country/territory: France
Central coordinates (latitude / longitude): 45°51'00"N (45.8500°) / 003°17'59"E (3.3000°)
Area (reported): 5,500 hectares / 55.00 km² / 13,591 acres / 21.24 square miles
Area (GIS-derived): 5,532 hectares / 55.32 km² / 13,670 acres / 21.36 square miles
Altitude: 260–320 m (853–1,050 ft)