{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"CompoundCRS","name":"MAGNA-SIRGAS 2018 + COLGVD2023 height","components":[{"type":"GeographicCRS","name":"MAGNA-SIRGAS 2018","datum":{"type":"GeodeticReferenceFrame","name":"Marco Geocentrico Nacional de Referencia 2018","ellipsoid":{"name":"GRS 1980","semi_major_axis":6378137,"inverse_flattening":298.257222101}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"}]},"remarks":"Replaces MAGNA-SIRGAS (CRS code 4686) for high accuracy purposes. Change is approximately 0.31m in latitude, 0.02m in longitude. For mapping and cadastral purposes considered equivalent."},{"type":"VerticalCRS","name":"COLGVD2023 height","datum":{"type":"VerticalReferenceFrame","name":"Colombian Geodetic Vertical Datum 2023"},"coordinate_system":{"subtype":"vertical","axis":[{"name":"Gravity-related height","abbreviation":"H","direction":"up","unit":"metre"}]}}],"scope":"Spatial referencing.","area":"Colombia - mainland onshore.","bbox":{"south_latitude":-4.23,"west_longitude":-79.1,"north_latitude":12.52,"east_longitude":-66.87},"id":{"authority":"EPSG","code":11895}}