Geological Survey of Great Britain. Great Britain. Geological Survey of England and Wales. Sheet 266 drift. Great Britain. Ordnance Survey of England. North Decimal Degree 51.533300. South Decimal Degree 51.3500. East Decimal Degree -1.6667. West Decimal Degree -2.0833. 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 published on Sheets 14 & 34, Old Series, 1857. Cretaceous and Tertiary rocks surveyed on the six-inch scale, 1888-1895. Revised in parts and Jurassic rocks surveyed on the six-inch scale by H. G. Dines, et al, 1923-4. Transferred to the New Series Map and published 1925.".
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