
Sperry serves as a central hub in Des Moines County on this mid-1960s survey, situated along the Chicago Rock Island And Pacific railroad. The landscape is defined by the transition from the agricultural tablelands of Yellow Springs and Franklin townships to the deeply incised valleys of Flint Creek and Yellow Spring Creek. These drainage patterns reveal the underlying geology of the region, which supported local industry like the Gypsum Plant and its adjacent Water Tank.
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2 editions found
1934 · Burlington
USGS Topo · 1:48,000
1940 · Burlington
USGS Topo · 1:62,500
1946 · Wapello
USGS Topo · 1:62,500
1949 · Wapello
USGS Topo · 1:62,500
1958 · Burlington
USGS Topo · 1:250,000
1958 · Davenport
USGS Topo · 1:250,000
1961 · Burlington
USGS Topo · 1:250,000
1961 · Davenport
USGS Topo · 1:250,000
1962 · Davenport
USGS Topo · 1:250,000
1963 · Burlington
USGS Topo · 1:250,000