VERTCRS["KSA-GRF17",
    VDATUM["Kingdom_of_Saudi_Arabia_Geodetic_Reference_Frame_2017"],
    CS[vertical,1],
        AXIS["ellipsoidal height (h)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Not known."],
        AREA["Saudi Arabia - onshore and offshore."],
        BBOX[16.29,34.44,32.16,55.67]],
    ID["ESRI",115894]]