
Erwin serves as the primary settlement on this portion of the Coteau des Prairies, a vast plateau that defines the regional topography. The village is organized around a grid including Main St, Adams Ave, and Railroad St, reflecting its historical reliance on transportation networks. To the northwest of the town center lies the Erwin Cem, an important site for genealogical research in this part of Kingsbury County. The surrounding landscape is characterized by a high concentration of wetlands and depressions typical of this glacial upland. In the southeast corner, the dry expanse of the Lake Preston Lakebed provides a clear indication of the area's fluctuating water levels, where former lake areas have transitioned into the marshy terrain and prairie flats shown in this modern survey.
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This is the sole edition of this map. No revisions or reprints were ever made.
1899 · De Smet
USGS Topo · 1:125,000
1953 · Watertown
USGS Topo · 1:250,000
1958 · Watertown
USGS Topo · 1:250,000
1968 · Lake Preston East
USGS Topo · 1:24,000
1968 · Lake Preston West
USGS Topo · 1:24,000
1968 · Lake Preston NE
USGS Topo · 1:24,000
1968 · Erwin
USGS Topo · 1:24,000
1971 · De Smet
USGS Topo · 1:24,000
1971 · De Smet SE
USGS Topo · 1:24,000
1973 · Bryant
USGS Topo · 1:24,000