Geological Survey of Great Britain. Great Britain. Geological Survey of England and Wales. Sheet 170 solid and drift. Great Britain. Ordnance Survey of England. North Decimal Degree 52.550000. South Decimal Degree 52.3833. East Decimal Degree -0.7833. West Decimal Degree -1.2167. 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 W. T. Aveline et al. published on Old Series sheets 52 NW, 53 NE, 63 SE and 64 SW in 1859-72: with additions by J.W. Judd in 1870-73. Surveyed on the six-inch scale by E.G. Poole et al between 1939-1963.".