Louisiane

1920 · 41175 — Washington D.C.: Published by the United States Coast and Geodetic Survey 1920. Large folding nautical chart printed on heavy paper stock. Colored. A rare original coastal survey of the end of the Mississippi River as it splits into passes of the Bird's Foot Delta into the Gulf of Mexico.<br/> <br/> Established by President Thomas Jefferson in 1807 as the Survey of the Coast the U.S. Coast and Geodetic Survey was the United States' first civilian scientific agency. This agency has followed its mission to survey the U.S. coastline create nautical charts of the coast and help increase maritime safety since its founding and has often played fascinating roles in significant chapters of U.S. history. It served in all theaters of the Civil War in the service of the Union Army and Navy pioneered acoustic exploration in the wake of the sinking of the Titanic and during WWI it worked to detect enemy submarines. In addition this agency worked to survey and produce detailed maps and renderings of the U.S. coast. These nautical survey maps commonly referred to as "T-sheets" provide fascinating insights into the history of the United States coastline which has and will continue to shift. These maps are the most important data source for understanding the physical and ecological characteristics of the U.S. shoreline. The present map of the Louisiana coastline is notable for the inclusion of the Bird's Foot Delta the mouth of the Mississipi River as it splits into smaller passes. This map is fascinating because this is the youngest lobe of the Mississippi Delta and has seen notable changes in the past 100 years. This map is a highly detailed and accurate sea chart of the Mississippi River and an important historical view of the developing Louisiana. Published by the United States Coast and Geodetic Survey unknown