Great Britain. Ordnance Survey of England. Great Britain. Geological Survey of England and Wales. Sheet 186 solid and drift. Geological Survey of Great Britain. North Decimal Degree 52.383300. South Decimal Degree 52.2000. East Decimal Degree -0.3667. West Decimal Degree -0.8000. In upper left margin: Ordnance Survey of England. Relief shown by 50 ft. contour interval and spot heights.Transverse Mercator projection. National grid system. "Original geological survey on the one-inch scale by H.H. Howell, published as part of Sheet 52 Old Series in 1864. Additional lines and partial revision by J.W. Judd, republished 1870.".
