Dunbar Slough dominates the northwestern landscape of this Greene County township, illustrating the persistent wetlands that characterize this portion of Iowa. The terrain is defined by a strictly organized grid of rural roads, including B Ave and 300th St, which partition the agricultural land around the watercourses of Willow Cr and Greenbrier Cr. A notable engineering feature is Drainage Ditch Number 117, a straight-line water management channel that cuts through the eastern sections, reflecting the region's historical transformation from prairie wetlands into productive farmland. This 2013 survey provides a clear view of the modern rural infrastructure and the remaining natural drainage patterns in the area northeast of Coon Rapids.
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This is the sole edition of this map. No revisions or reprints were ever made.
1954 · Bagley
USGS Topo · 1:62,500
1954 · Omaha
USGS Topo · 1:250,000
1954 · Fort Dodge
USGS Topo · 1:250,000
1957 · Omaha
USGS Topo · 1:250,000
1957 · Fort Dodge
USGS Topo · 1:250,000
1958 · Omaha
USGS Topo · 1:250,000
1958 · Fort Dodge
USGS Topo · 1:250,000
1962 · Jefferson
USGS Topo · 1:62,500
1971 · Coon Rapids South
USGS Topo · 1:24,000
1971 · Coon Rapids NE
USGS Topo · 1:24,000