The Sangamon River meanders along the southern border of this central Illinois landscape, defining the boundary between Mason and Menard Counties. The terrain north of the river is characterized by an extensive network of drainage infrastructure, including the Herget Drainage Ditch, Newton Ditch, and Hall Ditch, which manage the low-lying Herget Bottoms. These waterworks highlight the agricultural transformation of the area's wetlands and sloughs, such as Perry Slough and Wash Lake Slough.
41 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.
1925 · Havana
USGS Topo · 1:62,500
1929 · Manito
USGS Topo · 1:62,500
1930 · Chandlerville
USGS Topo · 1:62,500
1932 · Chandlerville
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
1947 · Havana
USGS Topo · 1:24,000
1948 · Havana
USGS Topo · 1:24,000
1949 · Havana
USGS Topo · 1:62,500