
The manufacturing hubs of Mason City and Austin anchor this mid-century look at the borderlands between Minnesota and Iowa. Heavy industry is a defining characteristic of the landscape, notably evidenced by the Mason City Brick and Tile Company and the Lehigh Portland Cement Company located near the Winnebago River. The region's transport network is particularly dense, with major corridors like the Chicago and North Western Railway and U.S. Highway 65 connecting agricultural centers such as Albert Lea and Charles City to larger markets. Beyond the industrial centers, the map documents recreational and conservation sites such as Pilot Knob State Park and Clear Lake State Park. The intricate drainage of the Cedar River and Shell Rock River systems illustrates the transition from the glaciated plains into the more dissected topography to the east, providing a clear picture of the land use patterns that supported both farming and manufacturing in the late 1950s.
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This is the sole edition of this map. No revisions or reprints were ever made.
1901 · Oelwein
USGS Topo · 1:125,000
1906 · Decorah
USGS Topo · 1:125,000
1932 · Cochrane
USGS Topo · 1:62,500
1934 · Plainview
USGS Topo · 1:62,500
1934 · Cochrane
USGS Topo · 1:62,500
1935 · Rochester
USGS Topo · 1:48,000
1937 · Cochrane
USGS Topo · 1:62,500
1938 · Plainview
USGS Topo · 1:62,500
1939 · Rochester
USGS Topo · 1:62,500
1950 · Mankato East
USGS Topo · 1:62,500