Sketch Showing the Progress of the Survey in Section VIII. Alabama, Mississippi, and Louisiana

A very nice chart showing the progress of the survey and triangulations from Mobile Bay to the Mississippi Delta, and on to Vermilion Bay, including a stretch of the Mississippi River into Louisiana.

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.