Geological Survey of Great Britain. Great Britain. Geological Survey of England and Wales. Sheet 295 drift. Great Britain. Ordnance Survey of England. North Decimal Degree 51.183300. South Decimal Degree 51.0167. East Decimal Degree -2.9167. West Decimal Degree -3.3167. 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 maps 20 and 21 by Sir H. T De al Beche, C.B. FRS. Re-surveyed on the old series maps by W. A.E. Ussher (small areas near Taunton by H. B. Woodward and along the N. W. border by J. H. Balke).".