The Mississippi River forms a wide, braided corridor through this 2018 survey, defining the border between Iowa and Illinois. The river landscape is characterized by complex side channels like Andalusia Slough and Arab Chute, which wrap around substantial landmasses including Andalusia Island and Arab Island. This aquatic environment is contrasted by the high ground of the Iowa side, where the settlement of Montpelier and the historic Pine Mill Bridge sit near the mouth of Pine Creek.
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1890 · Durant
USGS Topo · 1:62,500
1891 · Davenport
USGS Topo · 1:62,500
1894 · Durant
USGS Topo · 1:62,500
1894 · Davenport
USGS Topo · 1:62,500
1901 · Rock Island
USGS Topo · 1:125,000
1910 · Rock Island
USGS Topo · 1:125,000
1912 · Milan
USGS Topo · 1:62,500
1916 · Edgington
USGS Topo · 1:62,500
1938 · Edgington
USGS Topo · 1:62,500
1944 · Milan
USGS Topo · 1:62,500