
The Mississippi River defines the western edge of this landscape where Mercer County, Illinois, meets Louisa County, Iowa. The river valley is dominated by the Upper Mississippi River Wild Life and Fish Refuge, featuring riparian landmarks like Corsepius Island and a network of embankments including a Dike line. Inland, the terrain is shaped by the Edwards River and Pope Creek, which cut through a predominantly agricultural region organized into townships such as New Boston and Millersburg.
34 named features on this map. Tap any name to fly to it.
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2 editions found
1916 · Edgington
USGS Topo · 1:62,500
1935 · Keithsburg
USGS Topo · 1:48,000
1938 · Edgington
USGS Topo · 1:62,500
1941 · Keithsburg
USGS Topo · 1:62,500
1946 · Wapello
USGS Topo · 1:62,500
1948 · Muscatine
USGS Topo · 1:62,500
1949 · Wapello
USGS Topo · 1:62,500
1953 · Toolesboro
USGS Topo · 1:24,000
1953 · Blanchard Island
USGS Topo · 1:24,000
1953 · Buffalo Prairie
USGS Topo · 1:24,000