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Surveying the West

In 1853 Congress authorized funds for the Army Corps of Engineers to survey and report on possible routes for a railroad from the Mississippi River to the Pacific Ocean. Army engineers were experienced in surveying the West, and the military had an interest in preparing for westward expansion. Captain George B. McClellan, a West Point graduate and engineer, led a surveying party on the 49th parallel. He later served as General-in-Chief of the Union Armies during the Civil War.

1 Image Amendment to H.R. 336 authorizing the Secretary of War to organize a... View All Images
1 Image Notebook of Civil Engineer J. F. Minter, July 18-Oct. 17, 1853 View All Images
1 Image Field Note Journal of George McClellan, May 20-December 15, 1853 View All Images
1 Image Field Note Journal of George McClellan, 1853 View All Images
1 Image Reports of Explorations and Surveys (13 volumes), 1855–1861 View All Images