VERTCRS["St. Kilda height",VDATUM["St. Kilda"],CS[vertical,1],AXIS["gravity-related height (H)",up,LENGTHUNIT["metre",1]],USAGE[SCOPE["Geodesy, engineering survey."],AREA["United Kingdom (UK) - Great Britain - Scotland - St Kilda onshore."],BBOX[57.74,-8.74,57.93,-8.41]],ID["EPSG",5747]]