Geological Survey of Great Britain. Great Britain. Geological Survey of England and Wales. Sheet 78 solid. Great Britain. Ordnance Survey of England. North Decimal Degree 53.766700. South Decimal Degree 53.6167. East Decimal Degree -1.1833. West Decimal Degree -1.6000. In upper left corner: 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 maps in 1863, 1870, 1876-78. Re-surveyed in 1929-1934 by Wilfrid Edwards, et. al. N.E. part revised 1951.".