Easton and the small settlement of Teheran anchor this central Illinois landscape, where the flat upland agricultural plains give way to the complex hydrology of the Sangamon River valley. The map reveals an extensive network of drainage projects essential to the local farming economy, including Samuels Ditch, Hall Ditch, and Ross Tyrell Ditch. To the south, the terrain shifts into the alluvial lowlands of Herget Bottoms and the depression known as Sleepy Hollow, where the Sleepy Hollow Ditch feeds toward the river system.
60 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