VERTCRS["MONREF_1997",
    VDATUM["D_ITRF_2000"],
    CS[vertical,1],
        AXIS["ellipsoidal height (h)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Not known."],
        AREA["Mongolia."],
        BBOX[41.58,87.76,52.15,119.94]],
    ID["ESRI",115753]]