tag:digital.library.illinois.edu,2005:/items/b1675c40-c451-0133-1d17-0050569601ca-eEast Alton, Madison County, Illinois, Sept. 19212023-12-12T23:03:45Ztag:digital.library.illinois.edu,2005:Item/243062016-08-03T21:14:13Z2023-12-12T23:03:45ZEast Alton, Madison County, Illinois, Sept. 1921Sheet 1 includes symbol key, index, and location and index maps.University of Illinois at Urbana-Champaign Library