Geological Survey of Great Britain. Great Britain. Geological Survey of England and Wales. Sheet 166 drift. Great Britain. Ordnance Survey of England. North Decimal Degree 52.566700. South Decimal Degree 52.400000. East Decimal Degree -2.4833. 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 on the one-inch scale by W. T. Aveline et al. Published on Old Series Sheets 55 N.W., N.E. and 61 S.W., S.E. in 1850-1855. Survey on the six-inch scale in 1945 and 1952-1959 by R. H. Hoare et al." "Based on the Seventh Series one-inch map, part of sheet 129 dated 1952.".
