Drayton, Lieut. "Map of the route passed over by an expedition into the Indian country in 1832 to the source of the Mississippi." Map. Washington, D.C.?: U.S. War Dept., [1832?]. Norman B. Leventhal Map & Education Center, https://collections.leventhalmap.org/search/commonwealth:7h14b043f (accessed April 24, 2024).