Great Britain. Geological Survey of England and Wales. Great Britain. Ordnance Survey of England. Sheet 352 drift. North Decimal Degree 50.3000. South Decimal Degree 50.1333. East Decimal Degree -4.9333. West Decimal Degree -5.3333. Relief shown by contour interval and spot heights.Transverse Mercator projection. National grid system. Depth is shown by contour interval. "Original Geological Survey on the one-inch scale, by Sir H.T. De la Beche, F.R.S. Published on Sheets 31 & 33, Old Series. New Survey on six-inch scale by J. B. Hill et al. Reprinted with slight adjustments in 1938.".