1. Geological Survey Map, Old Series, 1-inch, Sheet 8.
2. Ordnance Map 1in, Sheet 126 (large sheet series).
3. Ordnance Map, 6 in, Surrey, 26 S.E. and 27 S.W.
4. Geology of the Weald;Topley;Mem. Geol. Survey,1875
5. Excursion to Redhill and Nutfield;Meyer;Proc. Geol. Assoc.,1894