Great Britain. Ordnance Survey of England. Great Britain. Geological Survey of England and Wales. Sheet 317 drift. Geological Survey of Great Britain. North Decimal Degree 50.9833. South Decimal Degree 50.8167. East Decimal Degree -0.4500. West Decimal Degree -0.8500. In upper left margin: Ordnance Survey of England. Relief shown by contour interval and spot heights. Transverse Mercator projection. National grid system. "Original geological survey on the one-inch scale by H. W. Bristow et al. Published on sheet 9, Old Series, 1864. Resurveyed on the six-inch scale by Clement Ried et al. Published with Drift, 1902.".
