Mason City serves as the central hub of this Central Illinois landscape, where a dense residential grid meets the expansive agricultural fields of the prairie. The town's layout is defined by a traditional street plan featuring named thoroughfares like W Roosevelt St, E Walnut St, and S Main ST. Beyond the city limits, the terrain is shaped by the meandering course of Salt Creek, which forms much of the boundary between Mason Co and Menard Co. This riparian corridor is marked by the Hubly Bridge and the small settlement of Hubly to the south.
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This is the sole edition of this map. No revisions or reprints were ever made.
1929 · Manito
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
1942 · Delavan
USGS Topo · 1:62,500
1948 · Mason City
USGS Topo · 1:62,500
1949 · Mason City
USGS Topo · 1:62,500
1958 · Peoria
USGS Topo · 1:250,000
1961 · Peoria
USGS Topo · 1:250,000
1963 · Peoria
USGS Topo · 1:250,000