Geological Maps (Published by the British Geological Survey)
1:625 000 scale (approx. one inch to ten miles).
Bedrock Geology - UK South (Geological Map of the United Kingdom - south sheet)
1:50 000 scale (approx. one and a quarter inches to the mile).
Nine maps are available which cover most of Essex.
205 Saffron Walden
206 Sudbury (includes part of Essex)
222 Great Dunmow
224/242 Colchester and Brightlingsea
256 North London (includes part of Essex)
258/259 Southend and Foulness.
271 Dartford (includes part of Essex)
1:25 000 scale (approx. two and a half inches to the mile).
Where to buy geological maps
All maps are published by the British Geological Survey (BGS). The BGS also publishes specialist Regional Memoirs or Sheet Descriptions to go with each map.
The best place to purchase geological maps and guides is the BGS London Information Office on the ground floor of the Earth Galleries of the Natural History Museum, London. The office also has an excellent range of other geological products on sale, such as field equipment, posters, souvenirs and postcards. The office is open weekdays only. See the BGS website for opening times or telephone the office on: 020 7589 4090.
Regional Memoirs (Published by the British Geological Survey)
Geology of the Country Around: Braintree. HMSO. 1986.
Geology of the Country Around Chelmsford. HMSO. 1985.
Geology of the Country Around Epping. HMSO. 1987.
Geology of the Country Around Great Dunmow. HMSO. 1990.
Geology of the Country near Saffron Walden. HMSO. 1932
Geology of the Country Around Southend and Foulness. HMSO. 1986
Geology of the Country Around Sudbury (Suffolk). HMSO. 1993. (includes part of Essex)
Geology of London. Special Memoir for the four 1:50,000 geological map sheets covering London. British Geological Survey 2004.
British Regional Geology: London and the Thames Valley. HMSO. 1996