"City and Harbor of Portland Maine", U.S. Coast Survey

The Office of Coast Survey is the oldest U.S. scientific organization, dating from 1807 when Congress directed that a "survey of the coast" be carried out. By 1836, it was called the U.S. Coast Survey and in 1878, the name was changed to the U.S. Coast and Geodetic Survey. Today the Office of Coast Survey is a division of the National Oceanic and Atmospheric Administration NOAA.

The survey teams, composed of civilians as well as Army and Naval officers, charted the nation's waterways and produced a wide array of reports, survey charts, hydrographic studies of tides and currents, astronomical studies and observations, and coastal pilots. These charts are an important record of the changing nature of the nation's coastlines. In additional to coastal charts, the U.S. Coast and Geodetic Survey produced land sketches, Civil War battle maps, and the early aeronautical charts.

A detailed map of the city of Portland and surrounding area showing city streets, buildings, wharves, bridges, railroads, and more. Buoys and numerous soundings fill the adjacent Fore River. The map is reduced from the surveys made in 1868 and 1869 for the City of Portland.

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Condition: B+

Issued folding and now flattened and backed with tissue to repair a 1" edge tear at left. Light toning along the fold lines.