Stamped : 'Approved (Signed) A. Maguire, Assistant Chief Engineer.' In lower right corner: '6-W-74.' Some annotations written over in yellow; black dotted line added between forebay and final spring in the northwest. Scale [ca. 1:6,000] 1 in.=500 feet
39 x 56 cm. Relief shown by hachures. "Entered according to act of Congress in the year 1864, by A.J. Johnson in the Clerks Office of the United States for the Southern District of New York." Atlas page numbers in upper margin: 67-68. Primer meridians: Greenwich and Washington, D.C. On verso: History and statistical view of the West India islands or Columbian Archipelago and Historical and statistical view of Mexico and Central America. Shows proposed railroads, locations of Indian tribes, natural features, counties, mines, mail routes, trails and routes of exploring expeditions. Has decorative border. Southern part of Nevada was added to the state in 1867 and is part of Nevada on this map, but Lincoln County was established in 1867 and is not on this map. This map was still probably published in 1867 in spite of someone's having written "1864" in pencil in the lower right corner of the Library's copy. Original publisher: A.J. Johnson.
Scale 1;250,000 ; polyconic projection (W 115°--W 114V/N 36V--N 35V) ; 1 map : col. ; 52 x 37 cm ; Relief shown by contours and spot heights. Contour interval 250 feet ; "Training map"--Center of upper margin of map ; "Base compiled from U.S. Geological Survey quadrangles. Control from U.S. Geological Survey. Revised from state highway maps for Arizona, Nevada and California" ; "Culture revisions shown in red based on reconnaissance by 67th Engr. Co. (Top.). May not be of same accuracy as base map." ; Map shows roads, trails, ponton sites, dam sites, possible air fields, possible landing fields, airports, water points, and impassable areas ; Map was originally restricted. "Classification cancelled by authority of Chief of Engineers letter of Jan. 22, 1946." ; Title at top of map: Nevada-Arizona-California : Camp Mohave quadrangle : grid zone F ; Army Map Service, U.S. Army.