Keywords: 1865 U.S. Coast Survey Triangulation Map of San Francisco Bay - Geographicus - SanFranciscoBay-uscs-1865.jpg A rare nautical triangulation chart of the California coast from Pt Sal to Tomales Bay including the San Francisco Bay area by the U S Coast Survey 1865 Depicts the much of the shoreline of southern California with numerous notations regarding the various ports and sailing references Produced in 1865 under the Supervision of A D Bache the most dynamic and influential leaders of the U S Coast Survey Dated 1865 dated Size in 13 5 17 object history credit line accession number SanFranciscoBay-uscs-1865 <i>Report of the Superintendant of the United States Coast Survey </i> Washington 1865 edition Geographicus-source PD-art United States Coast Survey maps Old maps of San Francisco Bay 1865 maps |