Great Britain. Ordnance Survey of England. (Third edition) Great Britain. Geological Survey of England and Wales. Sheet 5 drift. Geological Survey of Great Britain. North Decimal Degree 55.516700. South Decimal Degree 55.3500. East Decimal Degree -2.0333. West Decimal Degree -2.4667. In upper left margin: Ordnance Survey of England (Third edition). Relief shown by contour interval and spot heights. Transverse Mercator projection. National grid system.