VERTCRS["CGVD2013a(1997) height",
    VDATUM["Canadian Geodetic Vertical Datum of 2013 (CGG2013a) epoch 1997",
        ANCHOREPOCH[1997]],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Geodesy, topographic mapping."],
        AREA["Canada - onshore and offshore - Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Northwest Territories; Nova Scotia; Nunavut; Ontario; Prince Edward Island; Quebec; Saskatchewan; Yukon."],
        BBOX[38.21,-141.01,86.46,-40.73]],
    ID["EPSG",20035]]