Looking across the Colorado River to mouth of Paria Creek [graphic]. 1873.

O'Sullivan, Timothy H.

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Geographical surveys West of the 100th Meridian (U.S.)

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The Geographical Surveys West of the 100th Meridian, also known as the Wheeler Survey, grew out of the Army's desire to create maps featuring the geological aspects of the West, man-made improvements, and the "conformation, obstacles and resources of the country." Commanded by Lieutenant George Montague Wheeler, the survey was originally intended to cover the territory lying south of the Central Pacific Railroad, but grew in scope by 1872 to a mapping of all of the United States west of the 100t...

Wheeler, George Montague, 1842-1905

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Wheeler was born in Hopkinton, Massachusetts, the son of John Wheeler and Miriam P. Daniels. He graduated from West Point in 1866, ranked sixth in his class, and was commissioned as a lieutenant in the US Army Corps of Engineers. He first served in California from 1866 to 1871. In 1869 General Edward O. C. Ord sent him on a reconnaissance through the eastern Nevada. In 1872, the US Congress authorized an ambitious plan to map the portion of the United States west of the 100th meridian at a sc...