VERTCRS["El Hierro height",VDATUM["El Hierro"],CS[vertical,1],AXIS["gravity-related height (H)",up,LENGTHUNIT["metre",1]],USAGE[SCOPE["Geodesy, engineering survey, topographic mapping."],AREA["Spain - Canary Islands - El Hierro onshore."],BBOX[27.58,-18.22,27.9,-17.83]],ID["EPSG",9401]]