
Illiopolis and Niantic anchor the northern landscape of this Central Illinois region, situated along a busy transportation corridor defined by the Norfolk and Western and Illinois Terminal railroads. The terrain transitions from the developed town centers into the agricultural heartland of the Sangamon River valley, where the river's winding course creates a series of unique water features like Goose Neck Slough, Otter Lake, and Calamus Lake.
49 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1923 · Taylorville
USGS Topo · 1:62,500
1925 · Taylorville
USGS Topo · 1:62,500
1952 · Assumption
USGS Topo · 1:62,500
1954 · Niantic
USGS Topo · 1:62,500
1954 · Mechanicsburg
USGS Topo · 1:62,500
1958 · Decatur
USGS Topo · 1:250,000
1961 · Decatur
USGS Topo · 1:250,000
1982 · Harristown
USGS Topo · 1:24,000
1982 · Stonington
USGS Topo · 1:24,000
1982 · Lake Fork
USGS Topo · 1:24,000