In honor of the 150th anniversary of the Civil War in 2011, NOAA has assembled a special historical collection of maps, charts, and documents prepared by the U.S. Coast Survey during the war years. The collection, “Charting a More Perfect Union,” contains over nearly 400 documents, available free from NOAA’s Office of Coast Survey website. “People are planning now for their visits to Civil War sites next year, and we want to give them an opportunity to visualize the terrain, ports, and coasts as they were from 1861 to 1865,” said Meredith Westington, NOAA’s chief geographer. Coast Survey’s collection includes 394 Civil War-era maps, including nautical charts used for naval campaigns, and maps of troop movements and battlefields.