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American History. United States: Local History and Description. New Southwest. Colorado River, Canyon, and Valley.      
pioneers of the Southwest History.
Last Updated
11/12/2008
The Gadsden Purchase The Gadsden Purchase
the 1853 agreement that gave Arizona and New Mexico their current southern borders
The Robinson Library
American History.--United States: Local History and Description.--New Southwest. Colorado River, Canyon, and Valley.

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