Geological Survey of Great Britain. Great Britain. Geological Survey of England and Wales. Sheet 280 solid and drift. Great Britain. Ordnance Survey of England. North Decimal Degree 51.366700. South Decimal Degree 51.1833. East Decimal Degree -2.5000. West Decimal Degree -2.9167. In upper left margin: Ordnance Survey of Great Britain. Relief shown by contour interval and spot heights. Transverse Mercator projection. National grid system. "Original geological survey published on Old Series Sheet 19 in 1845-1899. Survey on six-inch scale in 1943-5 and 1948-55 by F. B. A. Wlech, et al." In lower right margin: "Based on the sixth edition one-inch map, parts of sheets 165 and 166 dated 1946.".