Regional Mississippiantradedata.

Kelly, J. E. 1991. Cahokia and its Role as a Gateway Center in Interregional Exchange. In Cahokia and the Hinterlands, edited by T.E. Emerson and R.B. Lewis, pp 61-80. University of Illinois Press, Urbana.

Image courtesy of the Board of Trustees of the University of Illinois and the Illinois Transportation Archaeological Research Program.