A map of the 12th level at the Soudan Mine starting from the Alaska Shaft going west towards the No. 8 Shaft and eaSaint The map shows the drifts, cross cuts, rock formations, raises, core sample drill holes, and stope areas. Lake Superior Datum.
Creator
Oliver Iron Mining Company
Subject
Business and industry
Temporal Coverage
1939-01-01 - 1942-01-01
Rights
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