VERTCRS["DNN height",VDATUM["Dansk Normal Nul"],CS[vertical,1],AXIS["gravity-related height (H)",up,LENGTHUNIT["metre",1]],USAGE[SCOPE["Engineering survey, topographic mapping."],AREA["Denmark - onshore."],BBOX[54.51,8,57.8,15.25]],ID["EPSG",5733]]