Illiopolis and Mount Auburn anchor the northeastern and southeastern corners of this Central Illinois landscape, separated by the winding course of the Sangamon River. The terrain transitions from the flat agricultural expanses near Lanesville and Saunders in the north to the more varied topography of Yellow Hammer Knob, Blind Horse Ridge, and Hampton Bluff as one approaches the river valley. This 2015 survey details a predominantly rural landscape where legacy markers like Bethel Cem and the Sangamon County Home Cem persist alongside modern infrastructure like Old Route 36. The convergence of Mosquito Cr and the Sangamon River creates a complex drainage pattern that has historically influenced the settlement boundaries between Sangamon and Christian counties, which meet along the river's path.
74 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 · Mechanicsburg
USGS Topo · 1:24,000
1982 · Stonington
USGS Topo · 1:24,000
1982 · Lake Fork
USGS Topo · 1:24,000