Photographer's notations: Golden West ads.

Scale 1:506,880. 1 in. to 8 miles (W 117°30--W 114°45/N 37°20--N 40°00). Relief shown by hachures and spot heights. At top left: 'Explorations & surveys west of the one-hundredth meridian.' At top right: 'Parts of Eastern & Southeastern Nevada & Southwestern Utah. Atlas sheet number 66.' At bottom left: 'Expeditions of 1869, 1872 & 1873.' At bottom right: ' 1st Lieut. Geo. M. Wheeler, Corps of Engineers, com'd'g.' Seal of the War Department, Corps of Engineers, U.S. Army at top center of map. Originally published as part of the geological atlas which is an appendix to the Survey's Report upon United States geographical surveys west of the one hundredth meridian, published in 1876?

At top of plate: 'U.S. geographical surveys west of the one-hundredth meridian. Parts of California, S.E. Nevada, Arizona & S.W. Utah.' At bottom of plate: 'Expeditions of 1872 & 1873, under the command of 1st Lieut. Geo. M. Wheeler, Corps of Engineers, U.S. Army.' 'G. K. Gilbert, A. R. Marvine, E. E. Howell, geological assistants.' 'By order of The Honorable The Secretary of War, under the direction of Brig. Gen. A. A. Humphries, Chief of Engineers, U.S. Army.' Published by Government Printing Office. 2 map sections on 1 sheet. Scale: 1 inch to 8 miles.