VERT_CS["Unknown_height_system_(US_survey_feet)",
    VERT_DATUM["Unknown_height_system_(US_survey_feet)",2005,
        AUTHORITY["ESRI","105111"]],
    UNIT["US survey foot",0.304800609601219,
        AUTHORITY["EPSG","9003"]],
    AXIS["Gravity-related height",UP],
    AUTHORITY["ESRI","115808"]]