![A plan of St. Mary's Harbour in the province of East Florida with the proposed post for the defence of it and the inland navigation to St. Jones [sic] River.](https://quod.lib.umich.edu/cgi/i/image/api/thumb/wcl1ic/8320/WCL008389/!250,250)
A plan of St. Mary's Harbour in the province of East Florida with the proposed post for the defence of it and the inland navigation to St. Jones [sic] River.
Finished, pen and ink map showing the site of the proposed fort and immediate vicinity.; Soundings are shown for the river and channel to the sea.; Table of references provides details of three redoubts on Cumberland Island.
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