
Hillsboro serves as the central hub of this mid-1970s survey, surrounded by the smaller communities of Sehram City and Taylor Springs. The landscape is defined by the expansion of water resources and transportation, notably the sprawling Glenn Lake and Hillsboro Lake, which are bordered by a Golf Course and Campground. The area's industrial and infrastructure base is visible through the Chicago and Penn Central Eastern Illinois railroad lines and the Hillsboro Municipal Airport situated in the East Fork township.
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This is the sole edition of this map. No revisions or reprints were ever made.
1915 · Mount Olive
USGS Topo · 1:62,500
1923 · Raymond
USGS Topo · 1:62,500
1925 · Raymond
USGS Topo · 1:62,500
1944 · Mount Olive
USGS Topo · 1:62,500
1946 · Nokomis
USGS Topo · 1:62,500
1947 · Hillsboro
USGS Topo · 1:62,500
1949 · Hillsboro
USGS Topo · 1:62,500
1949 · Nokomis
USGS Topo · 1:62,500
1958 · Decatur
USGS Topo · 1:250,000
1961 · Decatur
USGS Topo · 1:250,000