{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeodeticReferenceFrame","name":"Douala","ellipsoid":{"name":"Clarke 1880 (IGN)","semi_major_axis":6378249.2,"semi_minor_axis":6356515},"scope":"Topographic mapping.","area":"Cameroon - onshore and offshore.","bbox":{"south_latitude":1.65,"west_longitude":8.32,"north_latitude":13.09,"east_longitude":16.21},"id":{"authority":"EPSG","code":6228}}