Monks Mound and the American Bottoms floodplains define this landscape just east of the Mississippi River. The 2018 survey reveals a densely layered environment where ancient earthworks like Rattlesnake Mound sit alongside the industrial and residential corridors of Granite City, Madison, and Collinsville. This era is characterized by an extensive infrastructure of drainage and transit, featuring the Cahokia Canal, Harding Ditch, and the Norfolk Southern railway lines that cut through former wetlands.
75 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1888 · St. Louis
USGS Topo · 1:62,500
1907 · Belleville
USGS Topo · 1:62,500
1927 · Alton
USGS Topo · 1:62,500
1927 · Edwardsville
USGS Topo · 1:62,500
1931 · French Village
USGS Topo · 1:24,000
1932 · Edwardsville
USGS Topo · 1:62,500
1933 · Granite City
USGS Topo · 1:24,000
1933 · Cahokia
USGS Topo · 1:24,000
1934 · Cahokia
USGS Topo · 1:24,000
1934 · Alton
USGS Topo · 1:62,500