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Topographic map of the Boulder Canyon Reservoir site, 1930
Date
1930
Description
Scale [ca. 1:144,000. 1 in. to approx. 12,000 ft.] ; 1 map : col. ; 51 x 91 cm ; Relief shown by contours and spot heights ; "Map no. 23800" ; Includes township and range grid ; Includes two profile diagrams, area and capacity curve diagram, Topography of Black Canyon and vicinity map and Colorado River basin map. Inset maps of Black Canyon and vicinity and Colorado River Basin. Inset charts of Boulder Canyon Reservoir Area and Capacity Curves; and, Profile of Colorado River from Bridge Canyon Dam Site, Arizona to Black Canyon Dam Site, Arizona-Nevada. Bureau of Reclamation.
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Map showing the different routes travelled over by the detachments of the Overland Command in the spring of 1855 from Salt Lake City, Utah, to the Bay of San Francisco, 1855
Date
1855
Description
57 x 47 cm., folded to 22 x 13 cm. Indicates routes of Capt. Ingalls, Col. Steptoe,and Lt. Mowrey, and shows camping grounds. Relief shown by hachures. Graphic scale given in geographical as well as statute miles. "Ackerman Lith. 319 Broadway, N.Y." Hand colored. Original publisher unknown, Series: House Ex. Doc. No. 1, 1st session, 34th Congress.
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