Jefferys, Thomas, -1771. cartographic Maps. lcgft https://id.loc.gov/authorities/genreForms/gf2011026387 London [1768] eng Relief shown pictorially. Shows the Pacific Coast from 40⁰ N. lat. to 60⁰ N. lat. From the author's General topography of North America and the West Indies. 1768. Scale ca. 1:8,000,000. LC Maps of North America, 1750-1789, Canada--Maps--Early works to 1800. Louisiana--Maps--Early works to 1800. Mississippi River Valley--Maps--Early works to 1800. Canada. United States United States Mississippi River Valley. Available also through the Library of Congress Web site as a raster image. http://hdl.loc.gov/loc.gmd/g3400.ar009501