
The Mississippi River dominates this mid-1930s landscape, serving as the border between Illinois and Missouri. The river is characterized by a complex network of side channels and islands, such as Pharrs Island, Slim Island, and Mc Coy Island. On the Missouri side, the terrain rises sharply into a series of named peaks including The Pinnacle and Robert Hill, while the Illinois floodplain is crisscrossed by drainage features like Sny Slough and Cocklebur Slough.
133 named features on this map. Tap any name to fly to it.
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