
The Mississippi River corridor dominates this survey, where the river's broad backwaters and sloughs define the eastern boundary between Minnesota and Wisconsin. The intricate wetlands of Weaver Bottoms and Krueger Slough separate the main channel from the mainland, punctuated by landforms like Mallard Island and Swan Island. Along the western bluffs, the terrain rises sharply into Rattlesnake Ridge and Hoosier Ridge, creating a dramatic transition from the river valley to high agricultural plateaus.
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This is the sole edition of this map. No revisions or reprints were ever made.
1932 · Cochrane
USGS Topo · 1:62,500
1932 · Wabasha
USGS Topo · 1:62,500
1932 · Alma
USGS Topo · 1:62,500
1934 · Plainview
USGS Topo · 1:62,500
1934 · Cochrane
USGS Topo · 1:62,500
1937 · Cochrane
USGS Topo · 1:62,500
1938 · Plainview
USGS Topo · 1:62,500
1950 · Alma
USGS Topo · 1:62,500
1951 · Wabasha
USGS Topo · 1:62,500
1953 · Saint Paul
USGS Topo · 1:250,000