VERTCRS["NAVD88 height (ft)",VDATUM["North American Vertical Datum 1988"],CS[vertical,1],AXIS["gravity-related height (H)",up,LENGTHUNIT["foot",0.3048]],USAGE[SCOPE["Engineering survey, GIS, topographic mapping."],AREA["United States (USA) - onshore - Arizona; Michigan; Montana; North Dakota; Oregon; South Carolina."],BBOX[31.33,-124.6,49.01,-78.52]],ID["EPSG",8228]]