Great Britain. Ordnance Survey of England. Great Britain. Geological Survey of England and Wales. Sheet 23 solid. Geological Survey of Great Britain. North Decimal Degree 54.816700. South Decimal Degree 54.6667. East Decimal Degree -2.9000. West Decimal Degree -3.3667. 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 by J. C. Wrd, R. Russell, T. V. Holmes, A. Colvin, and W. T. Aveline, District Geologist. Published on old series sheet 101 N.E. in 1890. Re-surveyd 1922-1932 by T. Eastwood, F. M. Trotter, S. E. Hollingworth and W. C. C. Rose.".