Newmansville and White City anchor this landscape of the central Illinois river valleys, where the Mason Co and Cass Co line follows the winding course of the Sangamon River. The northern portion of the map is defined by the river’s broad floodplain, featuring numerous oxbows and backwaters like Fish Lake, Angelo Lake, and Mud Slough. These wetland features indicate the natural hydrology of the bottomlands before the heavy drainage and levee work common in the region.
66 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.
1909 · Tallula
USGS Topo · 1:62,500
1930 · Chandlerville
USGS Topo · 1:62,500
1932 · Chandlerville
USGS Topo · 1:62,500
1932 · Virginia
USGS Topo · 1:62,500
1933 · Petersburg
USGS Topo · 1:62,500
1936 · Virginia
USGS Topo · 1:62,500
1938 · Petersburg
USGS Topo · 1:62,500
1940 · Tallula
USGS Topo · 1:62,500
1948 · Quincy
USGS Topo · 1:250,000
1956 · Quincy
USGS Topo · 1:250,000