[A map of Lake Erie with the route southward from Fort Presqu'Isle to Fort Cumberland, with inset plans of Fort Pitt, Fort Venango, Fort Le Boeuf and Fort Presque Isle].

[A map of Lake Erie with the route southward from Fort Presqu'Isle to Fort Cumberland, with inset plans of Fort Pitt, Fort Venango, Fort Le Boeuf and Fort Presque Isle].

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