Fort William Augustus on Chimney Island in the Saint Lawrence River, close to present-day Ogdensburg, New York.
Amherst, Jeffery Amherst, Baron, 1717-1797
Royal United Services Institute for Defence and Security Studies
Scale approximately 1:7,200
British Library Collection
1 map on 6 sheets : joined, manuscript pen and ink with watercolour ; 70 x 91 cm
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