Oliver Iron Mining Division, United States Steel CorporationA map of the 7th level at the Soudan Mine starting from the No. 8 Shaft going east towards the No. 7 Shaft and weSaint The map shows the drifts, cross cuts, rock formations, raises, core sample drill holes, and stope areas. The map also shows the No. 12 Shaft. Lake Superior Datum.JPEGengU.S. Steel Corporation (Duluth, Minnesota)PublicBusiness and industrySoudan Mine, No. 8 Shaft, 7th Level, West, Soudan, MinnesotaMapsMinnesota--SoudanMinnesota--Saint Louis County1953-08-03University of Minnesota