Sketch Showing the Progress of the Survey in Sections XIII and XIV. Reconnaissance and Triangulation in Kentucky and Indiana

An inland geodetic triangulation of parts of Kentucky and Indiana from the Cumberland Gap northwest to Indianapolis. Cumberland River, the Ohio River, some railroads and various other rivers are shown along with place names and triangulation stations. 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.