
Chautauqua National Wildlife Refuge anchors the northwest corner of this Illinois landscape, where the waters of Lake Chautauqua and Quiver Creek meet the flat agricultural plains of Mason County. The terrain is defined by an extensive network of managed waterways, including the Mason Tazewell Drainage Ditch, Biggs Ditch, and Tomlin Ditch, which speak to the area's long history of land reclamation for farming.
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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 · St. David
USGS Topo · 1:24,000
1947 · Havana
USGS Topo · 1:24,000
1948 · St. David
USGS Topo · 1:24,000