
The Shell Rock River meanders through the northeast corner of this landscape, defining the character of the river valley near the settlement of Aureola. In the early 1970s, this portion of Iowa's northern borderlands maintained a distinct agrarian structure, with the Chicago Rock Island and Pacific railroad providing a vital transport corridor along the eastern edge. Local aviation is represented by two private strips, Ludwig Landing Field and Knoop Landing Field, indicating the utility of light aircraft for rural connectivity.
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This is the sole edition of this map. No revisions or reprints were ever made.
1954 · Mason City
USGS Topo · 1:250,000
1954 · Waterloo
USGS Topo · 1:250,000
1955 · Waterloo
USGS Topo · 1:250,000
1957 · Mason City
USGS Topo · 1:250,000
1958 · Mason City
USGS Topo · 1:250,000
1959 · Mason City
USGS Topo · 1:62,500
1959 · Mason City SE
USGS Topo · 1:24,000
1971 · Rockford
USGS Topo · 1:24,000
1971 · Roseville
USGS Topo · 1:24,000
1972 · Dumont North
USGS Topo · 1:24,000