Geological Survey of Great Britain. Great Britain. Geological Survey of England and Wales. Sheet 169 solid. Great Britain. Ordnance Survey of England. North Decimal Degree 52.566700. South Decimal Degree 52.4000. East Decimal Degree -1.2167. West Decimal Degree -1.6333. 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 H. H. Howell. Published on Sheets 53 N.W., 63 S.W. Olds Series in 1885. Re-surveyed on th six-inch Scale in 1912-15 by T. C. Cantrill et al. Published with Drift 1922. Solid edition published 1926.".