
Sonora and the surrounding townships of Summit, Devillo, Fairmount, and Lamars define this portion of Richland County in the early 1970s. The landscape is characterized by a precise grid of sections and an extensive drainage network, including County Ditch No 58, County Ditch No 26, and County Ditch No 30. This infrastructure reflects the intensive agricultural development of the Red River Valley region, where water management was essential for land use.
14 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1904 · Wahpeton
USGS Topo · 1:125,000
1915 · White Rock
USGS Topo · 1:62,500
1917 · New Effington
USGS Topo · 1:62,500
1918 · White Rock
USGS Topo · 1:62,500
1953 · Milbank
USGS Topo · 1:250,000
1953 · Fargo
USGS Topo · 1:250,000
1956 · Fargo
USGS Topo · 1:250,000
1958 · Milbank
USGS Topo · 1:250,000
1964 · Fairmount NW
USGS Topo · 1:24,000
1964 · Hankinson SE
USGS Topo · 1:24,000