1. Geological Survey Map. Old Series, 1 in., Sheets 6 and 8.
2. Ordnance Map, 1 in. Sheet 126 (large sheet series).
3. Ordnance Maps, 6 in. Surrey 27 S.E. and S.W., and 35 N.E.
4. Geology of the Weald;Topley;Mem. Geol. Survey,1875
5. Excursion to Red Hill and Nuffield;Meyer,1894