United States. Army. Corps of Topographical Engineers. "Map of the Valley of Mexico with a plan of the defences of the capital and the line of operations of the United States Army under Major General Scott, in August and September 1847." Map. New York: J. & D. Major's lith., [1847?]. Norman B. Leventhal Map & Education Center, https://collections.leventhalmap.org/search/commonwealth:4m90fj69s (accessed April 23, 2024).