Grand Island Pass, Mississippi / "Triangulation by J.F. Hilgard, 1855, S.A. Gilbert, 1852; topography by W.E. Greenwell, asst. C.S.; hydrography by the party und the command of Comdr. B.F. Sands, U.S.N. Assist. C.S."
From Mississippi (In 5 layers) Depicts: 1857 Last modified about 2 years ago. Unrectified.
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