Dallas City and Pontoosuc anchor the southern Illinois bank of the Mississippi River in this modern topographical study. The river corridor is defined by numerous islands and sloughs, including Dallas Island, Grape Island, and Peel Island, while the northern Iowa bank features the winding course of the Skunk River as it approaches the confluence. The drainage patterns of the region are deeply detailed, showing how Big Slough, Rogers Ditch, and Old Township Ditch manage the low-lying bottomlands between the rivers.
71 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.
1932 · Lomax
USGS Topo · 1:62,500
1934 · Burlington
USGS Topo · 1:48,000
1936 · Fort Madison
USGS Topo · 1:62,500
1937 · Lomax
USGS Topo · 1:62,500
1940 · Burlington
USGS Topo · 1:62,500
1958 · Burlington
USGS Topo · 1:250,000
1961 · Burlington
USGS Topo · 1:250,000
1963 · Burlington
USGS Topo · 1:250,000
1964 · Burlington
USGS Topo · 1:24,000
1964 · Lomax
USGS Topo · 1:24,000