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Bedrock geology of the southwestern part of the North Range, Cuyuna district, Minnesota

Miscellaneous Field Studies Map 181
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Abstract

The Cuyuna manganiferous iron-ore district is in central Minnesota in Morrison, Crow Wing, and Aitkin Counties.  The length of the district is about 68 miles, extending northeastward from a point near Randall, in Morrison County, to a point 11 miles east of the community of Hassmann in Aitkin County; the maximum known width is about 25 miles near the center of the district.  Current mining activity is confined to a much smaller area, commonly called the North range, about 10 miles long and 3 miles wide near Crosby and Ironton in Crow Wing County.  The average annual production of iron ore and manganiferous iron ore during 1940-50 was slightly less than 3 million tons.

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Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Bedrock geology of the southwestern part of the North Range, Cuyuna district, Minnesota
Series title Miscellaneous Field Studies Map
Series number 181
DOI 10.3133/mf181
Year Published 1958
Language English
Publisher U.S. Geological Survey
Description 3 Sheets: 31.71 x 28.66 inches or smaller
Country United States
State Minnesota
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