Purpose written documents
How to read a trench map:- PDF version.
Great War map grid, 1:40,000 sheets for Google Earth:- KMZ version. An unadjusted version to be used as a guide only.
Great War map grid, 1:10,000 sheets for Google Earth:- KMZ version. A more precise grid of the main sheets covering the British sector.
Great War period documents
British Survey on the Western Front by Lt. Col. H. S. L. Winterbotham. Transcribed version.
Maps and Artillery Boards:- A pamphlet issued by the British General Staff, December, 1916. PDF version
Manual of Map of Reading and Field Sketching, 1912 with additions of 1914:- Transcribed version
Help v 2.1