Williamsfield serves as the central hub for this portion of eastern Knox County, where the landscape transitions from established agricultural plains to the dissected drainage of the Spoon River. The river winds through the southern half of the quadrangle, crossed by the Lapham Bridge and joined by tributaries like Caldwell Cr and Brandywine Cr. To the northwest, the development of Oak Run surrounds Spoon Lake, contrasting with the more traditional rural settlements of Truro and Trenton Corners.
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This is the sole edition of this map. No revisions or reprints were ever made.
1931 · Galva
USGS Topo · 1:48,000
1940 · Galva
USGS Topo · 1:62,500
1941 · Maquon
USGS Topo · 1:62,500
1943 · Maquon
USGS Topo · 1:62,500
1944 · Galva
USGS Topo · 1:62,500
1944 · Kewanee
USGS Topo · 1:62,500
1944 · Elmwood
USGS Topo · 1:62,500
1948 · Elmwood
USGS Topo · 1:62,500
1958 · Burlington
USGS Topo · 1:250,000
1958 · Davenport
USGS Topo · 1:250,000