{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"VerticalReferenceFrame","name":"Croatian Vertical Reference Datum 1971","scope":"Geodesy.","area":"Croatia - onshore.","bbox":{"south_latitude":42.34,"west_longitude":13.43,"north_latitude":46.54,"east_longitude":19.43},"id":{"authority":"EPSG","code":5207}}