GEOGCS["Unknown datum based upon the Clarke 1866 Michigan ellipsoid (deprecated)",
    DATUM["Not_specified_based_on_Clarke_1866_Michigan_ellipsoid",
        SPHEROID["Clarke 1866 Michigan",6378450.0475489,294.978697164677,
            AUTHORITY["EPSG","7009"]],
        AUTHORITY["EPSG","6009"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4009"]]