VERTCRS["North Rona height",VDATUM["North Rona"],CS[vertical,1],AXIS["gravity-related height (H)",up,LENGTHUNIT["metre",1]],USAGE[SCOPE["Geodesy, engineering survey."],AREA["United Kingdom (UK) - Great Britain - Scotland - North Rona onshore."],BBOX[59.07,-5.92,59.19,-5.73]],ID["EPSG",5745]]