About the United States Coast Survey:
In 1807, President Thomas Jefferson established the Survey of the Coast to produce the nautical charts necessary for maritime safety, defense, and the establishment of national boundaries. Within years, the United States Coast Survey was the government’s leading scientific agency, charting coastlines and determining land elevations for the nation. In 1861, the agency adjusted quickly to meet the needs of a country at war.
About the Civil War Maps and Charts Collection:
Nearly 400 maps, charts, and documents related to the Civil War. Includes battlefield maps, coast and harbor maps. plans of forts, slave population map, maps showing rivers/topography/etc., and much more.
About the Complete Historical Map and Chart Collection
The Office of Coast Survey’s Historical Map & Chart Collection is a rich archive of high-resolution images capturing a vast wealth of the U.S. government’s historical surveying and mapping. The collection of over 35,000 scanned images – covering offshore and onshore sites – includes some of the Nation’s earliest nautical charts, bathymetric maps, city plans, and Civil War battlefield maps.
Hat Tip and Thanks: INFOMINE