{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"VerticalCRS","name":"Lao_1993","datum":{"type":"VerticalReferenceFrame","name":"D_Lao_1993"},"coordinate_system":{"subtype":"vertical","axis":[{"name":"Ellipsoidal height","abbreviation":"h","direction":"up","unit":"metre"}]},"scope":"Not known.","area":"Laos.","bbox":{"south_latitude":13.92,"west_longitude":100.09,"north_latitude":22.5,"east_longitude":107.64},"id":{"authority":"ESRI","code":115896}}