The Sangamon River defines the southern boundary of this central Illinois landscape, where it meets the Mason Co and Menard Co line. North of the river, a sophisticated network of agricultural drainage channels, such as Biggs Ditch, Newton Ditch, and Tomlin Ditch, has been engineered to manage the low-lying prairie terrain. These artificial waterways cut through a region marked by natural features like Perry Slough and Wash Lake Slough, illustrating the long-term human effort to reclaim the land for farming.
35 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