The Rock River carves a path through this section of northern Illinois, anchoring the city of Dixon and its surrounding rural townships. The urban center is famously marked by the Ronald Reagan Boyhood Home Historic Site, preserving a significant piece of local and national history near the riverbanks. Beyond the residential grid, the landscape transitions into a network of tributaries such as Threemile Br and Fivemile Br that feed into the main valley.
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This is the sole edition of this map. No revisions or reprints were ever made.
1918 · Dixon
USGS Topo · 1:62,500
1930 · Woodsung
USGS Topo · 1:48,000
1946 · Sterling
USGS Topo · 1:62,500
1948 · Sterling
USGS Topo · 1:62,500
1949 · Walnut
USGS Topo · 1:62,500
1950 · Dixon
USGS Topo · 1:62,500
1951 · Amboy
USGS Topo · 1:62,500
1958 · Aurora
USGS Topo · 1:250,000
1961 · Aurora
USGS Topo · 1:250,000
1982 · Harmon
USGS Topo · 1:24,000