Sonora and its surrounding agricultural reaches in Richland County are defined by a strictly organized grid of section lines and drainage infrastructure. This northern prairie landscape, mapped in 2011, reflects the enduring geometry of American homesteading. While the small settlements of Oswald and De Villo mark specific points of habitation, the map is dominated by the linear path of County Ditch Number 30, a vital waterway for managing the low-relief terrain. To the northwest, Saint Josephs Cemetery stands as a quiet landmark for local genealogical research. The region's transport network is entirely functional, consisting of a precise network of routes like County Rd 81 and County Rd 7 that facilitate the movement of goods across this productive corner of North Dakota.
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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