Easton and the small cluster of Teheran anchor this central Illinois landscape within Mason County, where the flat agricultural plains meet the more complex hydrology of the Sangamon River valley. The map reveals an intensive network of drainage systems essential to local farming, including Samuels Ditch, Hall Ditch, and Sleepy Hollow Ditch. These man-made channels contrast with the natural meandering of Salt Cr and the lowland depressions of Herget Bottoms.
77 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.
1929 · Manito
USGS Topo · 1:62,500
1932 · Manito
USGS Topo · 1:62,500
1933 · Petersburg
USGS Topo · 1:62,500
1938 · Petersburg
USGS Topo · 1:62,500
1942 · Delavan
USGS Topo · 1:62,500
1948 · Mason City
USGS Topo · 1:62,500
1949 · Mason City
USGS Topo · 1:62,500
1958 · Peoria
USGS Topo · 1:250,000
1961 · Peoria
USGS Topo · 1:250,000
1963 · Peoria
USGS Topo · 1:250,000