Sketch Showing The Progress of The Survey on the Atlantic Gulf of Mexico and Pacific Coast of The United States to November 1866

A striking U.S. Coast Survey chart showing primary places, capes, ports, harbors, current lines and small scale features of the entire US East and West Coasts. 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.