Gilman serves as the primary municipal hub in this portion of Marshall County, situated along a grid of local roads and the north-south corridor of Iowa State Highway 146. The landscape is defined by its agricultural character, with small clusters of development at Ferguson, Dunbar, Pickering, and Dillon marking the historical influence of rail lines and early township centers. Essential local infrastructure is noted at the Gilman Waterworks, while the surrounding countryside is drained by a network of small waterways including Timber Cr, Brush Cr, and Raven Cr. These creeks weave between section-line roads like Green Castle Rd and Dillon Rd, illustrating the intersection of natural drainage and the systematic land division typical of the Iowa prairie. The survey provides a clear view of the rural settlement patterns existing in the early 21st century.
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This is the sole edition of this map. No revisions or reprints were ever made.
1954 · Waterloo
USGS Topo · 1:250,000
1954 · Des Moines
USGS Topo · 1:250,000
1955 · Waterloo
USGS Topo · 1:250,000
1956 · Des Moines
USGS Topo · 1:250,000
1957 · Des Moines
USGS Topo · 1:250,000
1960 · Marshalltown
USGS Topo · 1:24,000
1960 · Marshalltown
USGS Topo · 1:62,500
1960 · Le Grand
USGS Topo · 1:24,000
1969 · Des Moines
USGS Topo · 1:250,000
1971 · Garwin
USGS Topo · 1:24,000