Great Britain. Geological Survey of England and Wales. Great Britain. Ordnance Survey of England. Sheet 341 drift. North Decimal Degree 50.6667. South Decimal Degree 50.583333. East Decimal Degree -2.5000. West Decimal Degree -2.9000. 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 H. W. Bristow, F.R.S. Published, on Sheet 17 Old Series, 1850. Resurveyed on the six-inch scale, by A. Strahan, M.A.".