Agricultural patterns and a rigid section-line road network define this portion of Cerro Gordo County south of Mason City. Small settlements like Portland and Hanford serve as anchors within a landscape dominated by drainage features and modest water bodies. Notable among these are Clark Lake and Lake Fin- Feather, which provide small aquatic breaks in the upland plains. The terrain is dissected by several waterways, including Cheslea Cr and Mason Cr in the north, while the southern reaches are marked by the E Br Beaverdam Cr and Coldwater Cr. A distinct topographic feature, the Big Gully, cuts through the eastern sections near the junction of Raven Ave and 220th St, illustrating the local drainage patterns that have influenced rural development and farm placement in this region.
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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 · 1:24,000
1959 · Mason City
USGS Topo · 1:62,500
1959 · Nora Springs
USGS Topo · 1:24,000
1959 · Mason City SE
USGS Topo · 1:24,000
1959 · Hanford
USGS Topo · 1:24,000