'Office of Chief Engineer' printed on map above date.

25 x 39 cm. United States, Department of the Interior, Bureau of Reclamation. Relief shown pictorially. "Map no. X-300-738." "September 1967." Shows completed, under construction and proposed dams and reservoirs, canals, and aqueducts, power plants, pumping plants, substations, transmission lines, tunnels and siphons. Also shows non-Bureau of Reclamation dams, reservoirs, tunnels, pipelines and irrigated lands. Includes inset map of location of Region 3 and key map of drainage basins. Original Publisher: Interior.

38 x 48 cm. Relief shown by hachures and spot heights. "Atlas sheet no. 53(C)." "Issued May 7th 1877." "1st. Lieut. Geo. M. Wheeler, Corps of Engineers, U.S. Army." Prime meridians: Greenwich and Washington, D.C. Includes sectional diagram that shows how atlas sheets fit together. "Weyss, Herman & Lang, del." "Louis Nell, J. J. Young, topographical assistants." "Under the direction of Brig. General A. A. Hunphreys, Chief of Engineers, U. S. Army." "Expeditions of 1873 and 1876 under the command of 1st. Lieutenant William L. Marshall, Corps of Engineers, U. S. Army, 1st Lieutenant Eric Bergland, Corps of Engineers, U. S. Army, Executive Officers and field astronomers." "By order of the honorable the Secretary of War." Original publisher: Graphic Co. photo., Scale: 1 inch to 4 miles or 1:253440.

83 x 43 cm. "Drawing no. 423-300-59." "May 1957." "Supercedes 423-306-183." "Map compiled from Coast and Geodetic Survey sectional aeronautical charts, and Bureau of Reclamation data." Includes index to gaging stations. Shows dams, canals, levees, pumping plants, etc. Insets: [Salton Sea]--Operational diagram, no scale. "Revised June 1967." Original publisher: Bureau of Reclamation, Region 3.

'Henry Gannett, chief geographer ; A.H. Thompson, geographer in charge ; triangulation by H.M. Wilson ; topography by H.M. Wilson and Powell survey.' 'Edition of Mar. 1892, reprinted 1929.' Handwritten legend on right-side margin of map. Original publisher: Dept. of the Interior, U.S. Geological Survey. Scale 1:250,000
polyconic proj. (W 115°--W 114°/N 37°--N 35°).