The Mississippi River bottomlands and the rising bluffs of Adams Co define this landscape along the Illinois and Missouri border. The settlement of Lima serves as a focal point on the higher ground to the east, where the terrain shifts from the flat, drainage-dependent agriculture of the river valley to a more dissected upland. This transition is marked by the Bluff Canal and Steepage Ditch, engineering features designed to manage the hydrology of the low-lying fields.
72 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.
1903 · Kahoka
USGS Topo · 1:125,000
1936 · Keokuk
USGS Topo · 1:62,500
1946 · Mendon
USGS Topo · 1:62,500
1948 · Mendon
USGS Topo · 1:62,500
1949 · Kahoka SE
USGS Topo · 1:24,000
1950 · Kahoka SE
USGS Topo · 1:24,000
1950 · Keokuk
USGS Topo · 1:62,500
1950 · La Grange
USGS Topo · 1:24,000
1950 · Canton
USGS Topo · 1:24,000
1951 · Canton
USGS Topo · 1:24,000