Map of the Battle of Basque Roads, 1809; a naval battle of the Napoleonic wars fought between the British and the French. The map illustrates the position of the anchored French fleet south of the Île-d'Aix shortly before the British launched a fire ship attack on the night of 11 April.
Own work based on text, maps and charts from:

Detailed plan of attack on Aix Roads, engraved by Simpkin after original by Fairfax published by Joyce Gold (1809), (from the Naval Chronicle, Vol XII)
Clowes, William Laird (1997 [1900])       The Royal Navy, A History from the Earliest Times to 1900, Volume V, Chatham Publishing  
Cordingly, David (2007)       Cochrane the Dauntless, London:  Bloomsbury Publishing  
James, William (1826)       The Naval History of Great Britain, Volume 5, 1808–1811, Harding, Lepard, and Co  Map icons from:

File:Maps template-en.svg
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