Coal Valley and its surrounding river lowlands are defined by the convergence of the Rock River and Green River, a landscape characterized by complex waterways such as Coaltown Slough and Bowles Slough. In the north, the urban expansion of Moline, East Moline, and Silvis meets the industrial corridor of John Deere Rd, showing the dense development of the Quad Cities region.
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This is the sole edition of this map. No revisions or reprints were ever made.
1891 · Davenport
USGS Topo · 1:62,500
1892 · Leclaire
USGS Topo · 1:62,500
1893 · Leclaire
USGS Topo · 1:62,500
1894 · Davenport
USGS Topo · 1:62,500
1899 · Clinton
USGS Topo · 1:125,000
1901 · Rock Island
USGS Topo · 1:125,000
1910 · Rock Island
USGS Topo · 1:125,000
1912 · Milan
USGS Topo · 1:62,500
1937 · Orion
USGS Topo · 1:62,500
1944 · Milan
USGS Topo · 1:62,500