
Plessis sits within the eastern reaches of the Coteau des Prairies, a vast plateau that shapes the drainage of O'Brien County. This survey reveals a meticulously organized agricultural grid where section lines are defined by roads like Silver Ave and 290th St. Water distribution is central to the landscape's character, with the Floyd River flowing through the west while the eastern half is deeply dissected by the headwaters of Waterman Cr and Plessis Cr. The rural layout is anchored by the Randolph Cem in the southeast, serving as a localized historical marker for the surrounding farming community. The map illustrates how late-modern infrastructure follows the precise township and range boundaries of t97n r40w and t96n r40w, maintaining the land division patterns established over a century prior.
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This is the sole edition of this map. No revisions or reprints were ever made.
1954 · Fairmont
USGS Topo · 1:250,000
1958 · Fairmont
USGS Topo · 1:250,000
1964 · Primghar
USGS Topo · 1:24,000
1964 · Plessis
USGS Topo · 1:24,000
1964 · Gaza
USGS Topo · 1:24,000
1964 · Sanborn
USGS Topo · 1:24,000
1970 · Hartley SW
USGS Topo · 1:24,000
1970 · Hartley
USGS Topo · 1:24,000
1970 · May City
USGS Topo · 1:24,000
1972 · Cloverdale
USGS Topo · 1:24,000