A map of the 21st level at the Soudan Mine starting from the No. 8 Shaft going east and west. The No. 8 Shaft is not listed, but it appears at the 3,8 NW of SW. The map shows the drifts, cross cuts, rock formations, raises, core sample drill holes, and stope areas. Lake Superior Datum.
Oliver Iron Mining Division, United States Steel Corporation
Date Created:
1948-01-01 - 1957-01-01
Description:
A map of the 23rd level at the Soudan Mine starting from the No. 8 Shaft going east. The map shows the drifts, cross cuts, and stope areas. Lake Superior Datum. (There is an additional date stamped of 1962-8-1)
A map of the 23rd level at the Soudan Mine continuing from Map One going east. The map shows the drifts, cross cuts, and stope areas. Lake Superior Datum
Oliver Iron Mining Division, United States Steel Corporation
Date Created:
1956-01-01 - 1958-01-01
Description:
A map of the 22nd level at the Soudan Mine continuing from where the first section of the map ended. The map shows the drifts, cross cuts, rock formations, raises, core sample drill holes, and stope areas. Lake Superior Datum.
Oliver Iron Mining Division, United States Steel Corporation
Date Created:
1956-01-01 - 1961-01-01
Description:
A map of the 22nd level at the Soudan Mine starting from the No. 8 Shaft going west. The map shows the drifts, cross cuts, rock formations, raises, core sample drill holes, and stope areas. Lake Superior Datum.
A map of the 12th level at the Soudan Mine starting from the Alaska Shaft going west towards the No. 8 Shaft and east. The map shows the drifts, cross cuts, rock formations, raises, core sample drill holes, and stope areas. Lake Superior Datum.
A map of the 16th level at the Soudan Mine starting from the No. 8 Shaft going west. The map shows the drifts, cross cuts, rock formations, raises, core sample drill holes, and stope areas. Lake Superior Datum.
Cooperative Power Association, Minneapolis, Minnesota, and United Power Association, Elk River, Minnesota, power line placement maps for Grant County and portions of Traverse and Stevens counties. Each map shows tower placement on copies of aerial photographs of affected properties and a graph showing elevations of towers above sea level.