{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeographicCRS","name":"BD72","datum":{"type":"GeodeticReferenceFrame","name":"Reseau National Belge 1972","ellipsoid":{"name":"International 1924","semi_major_axis":6378388,"inverse_flattening":297}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"}]},"scope":"Geodesy.","area":"Belgium - onshore.","bbox":{"south_latitude":49.5,"west_longitude":2.5,"north_latitude":51.51,"east_longitude":6.4},"id":{"authority":"EPSG","code":4313}}