Chart showing Grenville Harbor and Grenville Point in the Washington Territory
Other variants have these printed higher up on the page
A detailed map showing the Pulgas Baseline east of San Francisco near the San Antonio Creek
The artwork is signed with "Boone" in the lower right corner
"Voyage dans les États-Unis d'Amérique"
U.S. Coast Survey A.D. Bache Supdt. Sketch Showing the Progress of The Survey on the Atlantic Gulf of Mexico and Pacific Coast of The United States, To November 1864 Denmark Chart showing Grenville Harbor andA striking U. S. Coast Survey chart showing primary places, capes, ports, harbors, current lines and small scale features of the entire US East and West Coasts. IMPORTANT NOTE: All of our United States Coast Survey (USCS), United States Coast & Geodetic Survey (USC&GS), and similar maps and charts have been professionally unfolded and flattened using humidity baths, semi permeable membrane, and drying blotter techniques. Most others you typically see
