
The Illinois River valley near Manito and Forest City is defined by a complex network of backwater lakes and artificial drainage systems. At mid-century, the landscape is divided between the sprawling wetlands of Spring Lake, Clear Lake, and Rice Lake and the intensely managed agricultural flats to the east. The proliferation of ditches, such as Quiver Ditch and Main Ditch, indicates a massive coordinated effort to reclaim the fertile bottomlands of Mason County.
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3 editions found
1905 · Peoria
USGS Topo · 1:62,500
1912 · Canton
USGS Topo · 1:62,500
1925 · Havana
USGS Topo · 1:62,500
1927 · Peoria
USGS Topo · 1:62,500
1929 · Manito
USGS Topo · 1:62,500
1930 · Chandlerville
USGS Topo · 1:62,500
1930 · Glasford
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