{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"VerticalCRS","name":"MARGEN","datum":{"type":"VerticalReferenceFrame","name":"D_Marco_Geodesico_Nacional"},"coordinate_system":{"subtype":"vertical","axis":[{"name":"Ellipsoidal height","abbreviation":"h","direction":"up","unit":"metre"}]},"scope":"Not known.","area":"Bolivia.","bbox":{"south_latitude":-22.91,"west_longitude":-69.66,"north_latitude":-9.67,"east_longitude":-57.52},"id":{"authority":"ESRI","code":115750}}