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1. Geologic map of Minnesota, Two Harbors, bedrock geology

1982. Green, John C. Map showing interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Two Harbors quadrang...

2. Geologic map of the Ely quadrangle, St Louis and Lake Counties, Minnesota, M-50

1982. Green, John C. and Schulz, Klaus J. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Ely quadrangle, scale 1:24,000.