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.

This is a complete set of the three larger coastal survey maps that cover from San Diego to the border with Canada. They should not be confused with the slightly smaller, simpler charts that do not feature the large number of coastal views. These charts were part of the first official scientific reconnaissance of the Pacific coast and outlines the coastal littoral, shows dangerous reefs and shoals, gives offshore bathymetric soundings, plus general and specific harbor and sailing instructions. First published in 1835-55, this set has been updated and corrected to 1864.

A. Reconnaissance of the Western Coast of the United States (Lower Sheet) San Francisco to San Diego by the Hydrographic Party, (22.8 x 21.8"). Covers the region from the Mexican boundary to Point Reyes. The most impressive feature is the 17 views of entrances and promontories along this rugged coastline, among them Santa Barbara, Catalina Harbor, and the entrance to San Francisco Bay. One of the most desirable Coast Survey charts.

B. Reconnaissance of the Western Coast of the United States Middle Sheet from San Francisco to Umpquah River..., (22.2 x 24.9"). Details the California and Oregon coast from San Francisco Bay to the mouth of the Umpquah River in the north. Major points included are Bodega Bay, Shelter Cover and Trinidad Bay in California, and the Klamath River, Crescent City, Port Orford, Cape Blanco and the Rogue's River in Oregon. With 11 views including Cape Mendocino and the Crescent City Light House.

C. Reconnaissance of the Western Coast of the United States (Northern Sheet) from Umpquah River to the Boundary..., (22.2 x 24.8"). This chart continues up the northern Oregon coast from the Umpquah River to the Straits of Juan de Fuca to include the full extent of Puget Sound. Names Cape Foulweather, Cape Lookout, Tillamook Head and False Tillamook, Cape Disappointment and Astoria at the mouth of the Columbia River, and Gray's Harbor. The eight large views include Cape Lookout, Destruction [Bay], and at the top the large "Entrance to the Columbia River, Cape Disappointment."

References: Heckrotte & Sweetkind #33; Schwartz & Ehrenberg, plt. #174.

Condition: B

Issued folding and now flat with light toning along the fold lines, a few short fold separations closed on verso with archival tape, and some scattered foxing.