Sketch F No. 6 Showing the Proposed Site of a Beacon on Rebecca Shoal Florida Reef

Chart showing the Proposed Site of a Beacon on Rebecca Shoal, Florida located between the Dry Tortugas and Cayos de Boca Grande Keys and Mangrove Key. Depth soundings, reefs, shoals, and a note by an area called "The Quicksands" that reads "an extensive and very dangerous bank." IMPORTANT NOTE: All of our United States Coast Survey (USCS), United States Coast & Geodetic Survey (USC&GS), and similar maps and charts have been professionally unfolded and flattened using humidity baths, semi-permeable membrane, and drying blotter techniques. Most others you typically see on eBay have not been, and worse, are quickly and crudely unfolded for the low-quality photos you see. Unfolding these maps in that way is damaging and weakens them. Please be aware.