Country/territory: France
Central coordinates (latitude / longitude): 46°31'59"N (46.5333°) / 001°48'00"W (-1.8000°)
Area (reported): 3,250 hectares / 32.50 km² / 8,031 acres / 12.55 square miles
Area (GIS-derived): 3,283 hectares / 32.83 km² / 8,112 acres / 12.68 square miles
Altitude: 1–34 m (3–112 ft)