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Environment
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Geoscientific Information
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Minnesota
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Year
1962
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1. Geology of the metamorphosed Biwabik iron-formation, Eastern Mesabi district, Minnesota, Bulletin 43, Plate 1
1962. Gundersen, J.N. and Schwartz George M. Generalized geologic map and longitudinal diagram of the Eastern Mesabi District, Minnesota, scale 1 inch = about 1 1/4 mile.