A map of the 27th level at the Soudan Mine starting from the beginning of the ore body and continuing west towards the stope on our tours. The map shows the drift (coming from the No. 8 Shaft), cross cuts, rock formations, raises, core sample drill holes, and two stope areas. Lake Superior Datum.
Creator
Oliver Iron Mining Division, United States Steel Corporation
Publisher
U.S. Steel Corporation (Ely, Minnesota)
Subject
Business and industry
Temporal Coverage
1959-01-01 - 1961-05-01
Rights
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