The maps above derive from those found in Chapter 2 of the 2012 edition of the State of the National Park Report issued by the SDNPA. The originals were produced GeoSpec, University of Brighton, in February 2012.
- The Sussex Geodiversity Website.
- West Sussex County Council (2003) Geology and Hydrogeology — a chapter from a consultation document [PDF].
- David Robinson (2013) The Geology and Scenery of the South Downs National Park. Lewes: The Sussex Archaeological Society. [The best available book for the non-specialist reader. The book is short and to the point with lots of highly relevant illustrations. Fulking and Edburton muster over half a dozen references in the index. Strongly recommended.]
20th March 2013; updated 23rd March, 28th July, 16th October, 7th November 2013; 23rd March 2014