Keywords: 1857 U.S. Coast Survey Map or Chart of the Patapsco River, Chesapeake Bay and Baltimore - Geographicus - PatapscoRiver-uscs-1856.jpg This is an uncommon 1856 U S Coast Survey Chart or Map of Patapsco River the Chesapeake Bay and approaches to Baltimore Maryland Covers from Baltimore in the northwest eastward as far as Fairlee Creek and southward as far as the Magothy River Offers considerable detail throughout but especially inland where farms roads streets and even some individual buildings are noted Countless depth soundings throughout Notes on tides under sea dangers and sailing instructions in the lower left quadrant The Triangulation for this survey was completed by J Ferguson The topography is the work of F H Gerdes R D Cutts H J Whiting and J B Bluck The Hydrography was accomplished by a party under the command of G M Bache C H Mc Blair and R Wainwright The construction of this chart was supervised by both A D Bache and F R Hassler two of the most important and influential early superintendents of the U S Coast Survey Published in the 1856 edition of the Superintendent's Report 1856 dated Size in 27 5 17 5 object history credit line accession number PatapscoRiver-uscs-1856 <i>Report of the Superintendant of the U S Coast Survey </i> 1847 edition Geographicus-source PD-art United States Coast Survey maps Old maps of the Chesapeake Bay Patapsco River |