Springbrook serves as the primary inland hub of this Jackson County landscape, situated where the rolling uplands of eastern Iowa begin their descent toward the river valley. The settlement is anchored by the Saint Peter and Paul Catholic Cem, reflecting the area's deep-rooted community ties. To the northeast, the Mississippi River forms the state boundary with Illinois, its course winding past Island Number 249 and Harrington Slough.
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This is the sole edition of this map. No revisions or reprints were ever made.
1891 · Maquoketa
USGS Topo · 1:62,500
1901 · Peosta
USGS Topo · 1:125,000
1911 · Galena
USGS Topo · 1:62,500
1913 · Galena
USGS Topo · 1:62,500
1935 · East Dubuque
USGS Topo · 1:62,500
1935 · Miles
USGS Topo · 1:62,500
1940 · East Dubuque
USGS Topo · 1:62,500
1941 · Miles
USGS Topo · 1:62,500
1953 · Green Island
USGS Topo · 1:24,000
1959 · Dubuque
USGS Topo · 1:250,000