VERTCRS["London Survey Grid height",VDATUM["London Survey Grid height datum"],CS[vertical,1],AXIS["gravity-related height (H)",up,LENGTHUNIT["metre",1]],USAGE[SCOPE["Engineering survey and topographic mapping for transport applications."],AREA["United Kingdom (UK) - Greater London and surrounding area."],BBOX[51.1,-1.33,52,0.8]],ID["EPSG",10989]]