
Rock River dominates the center of this 1950 revision, carving a winding course through the borderlands of Ogle and Lee counties. The river passes through the iconic loop at Grand Detour and continues southwest into Dixon, where a concentrated grid of urban streets meets the main rail lines. The landscape is heavily marked by early 20th-century rural infrastructure, specifically an exceptionally high density of named country schools like Tealls Corners School, Red Birch School, and Britton School, reflecting the era's decentralized educational system before the rise of consolidated districts.
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2 editions found
1917 · Kings
USGS Topo · 1:62,500
1918 · Dixon
USGS Topo · 1:62,500
1918 · Kings
USGS Topo · 1:62,500
1922 · Oregon
USGS Topo · 1:62,500
1924 · Oregon
USGS Topo · 1:62,500
1930 · Woodsung
USGS Topo · 1:48,000
1942 · Forreston
USGS Topo · 1:62,500
1945 · Forreston
USGS Topo · 1:62,500
1946 · Sterling
USGS Topo · 1:62,500
1948 · Sterling
USGS Topo · 1:62,500