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.
State of Minnesota Department of Highways Map showing location of proposed bridge over St. Croix River at Stillwater between Minnesota and Wisconsin Approved June 7, 1929 includes structure elevation, span and dimensions, fill, water elevation and roadway dimensions and State of Minnesota thumbnail map.
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.
State of Minnesota Department of Highways Map showing location of proposed bridge over St. Croix River at Stillwater between Minnesota and Wisconsin Approved June 7, 1929 includes structure elevation, span and dimensions, fill, water elevation and roadway dimensions. Sheets 2 and 3 are connected to show a total panoramic view.
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.
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.
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.
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:
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 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:
1959-01-01 - 1962-01-01
Description:
A map of the 25th level at the Soudan Mine focusing on the Montana ore body. This is close up of the western section of the entire 25th Level map. 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:
1938-01-01 - 1953-06-01
Description:
A map of the 15th level at the Soudan Mine starting from the No. 8 Shaft going east. 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 - 1962-01-01
Description:
A map of the 27th level at the Soudan Mine starting from the No. 8 Shaft going east. The map shows the drift, 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:
1939-01-01 - 1957-03-01
Description:
A map of the 17th level at the Soudan Mine continuing from Map One going east towards the Alaska Shaft. The map shows the drifts, cross cuts, rock formations, raises, core sample drill holes, and stope areas. Lake Superior Datum.
A map of the 17th level at the Soudan Mine starting from the No. 8 Shaft going east and 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 18th 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.
Oliver Iron Mining Division, United States Steel Corporation
Date Created:
1959-01-01 - 1961-05-01
Description:
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.
Oliver Iron Mining Division, United States Steel Corporation
Date Created:
1959-05-01 - 1962-05-01
Description:
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.
Oliver Iron Mining Division, United States Steel Corporation
Date Created:
1959-01-01 - 1962-01-01
Description:
A map of the 25th level at the Soudan Mine focusing on the Montana ore body. This is close up of the western section of the entire 25th Level map. The map shows the drifts, cross cuts, rock formations, raises, core sample drill holes, and stope areas. Lake Superior Datum.
A map of the 18th level at the Soudan Mine continuing from Map One 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 15th level at the Soudan Mine starting from the No. 8 Shaft going west and a portion to the 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 12th level at the Soudan Mine starting from the No. 8 Shaft going west and east towards the Alaska Shaft. 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:
1906-01-01
Description:
A map of the 11th level at the Soudan Mine starting from the No. 8 Shaft going west. The map shows the drifts, rock formations, and areas that were mined out. Lake Superior Datum.