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Hydroelectric Plants

 Subject
Subject Source: Local sources

Found in 355 Collections and/or Records:

A-15-028A -- Sketch Showing Relocation of Proposed Pole Line from Hydro No. 2 to Hydro No. 1 Intake, Maurice S.D., 1937-08-01

 Item — Cabinet Multi-Drawer A, Drawer: 15, Folder: 1
Scope and Contents From the Collection:

The Homestake Mining Company Maps and Blueprints Collection contains a wide variety of maps, drawings, blueprints, and other documents relating to the company's operation. Blueprints consist of machines the Homestake Mining Company used and the buildings that they built. This collection also contains various geological, metallurgical, and engineering maps of the mine.

Dates: 1937-08-01

A-15-035 -- Sketch Showing Location and Elev. Of Stakes Set to Check Ground Movement Below Hydro No. 2 Intake, All measurements taken on slope of ground Red figures are elevations and distances as of (dates from 1939 to 1941). 5 copies, 1939-06-19

 Item — Cabinet Multi-Drawer A, Drawer: 15, Folder: 1
Scope and Contents From the Collection:

The Homestake Mining Company Maps and Blueprints Collection contains a wide variety of maps, drawings, blueprints, and other documents relating to the company's operation. Blueprints consist of machines the Homestake Mining Company used and the buildings that they built. This collection also contains various geological, metallurgical, and engineering maps of the mine.

Dates: 1939-06-19

A-16-003 -- Hydro No. 2 Pipe Line New Steel Pipe to Replace Wood Stave Pipe on Long Trestle, American Siding, 1956-08-10T00:00:00+00:00

 Item — Cabinet Multi-Drawer A, Drawer: 16, Folder: 1
Scope and Contents From the Collection:

The Homestake Mining Company Maps and Blueprints Collection contains a wide variety of maps, drawings, blueprints, and other documents relating to the company's operation. Blueprints consist of machines the Homestake Mining Company used and the buildings that they built. This collection also contains various geological, metallurgical, and engineering maps of the mine.

Dates: 1956-08-10T00:00:00+00:00

A-20-014 -- Hanna Ties to New Water Line, 1962-08-18

 Item — Cabinet Multi-Drawer A, Drawer: 20
Scope and Contents From the Collection:

The Homestake Mining Company Maps and Blueprints Collection contains a wide variety of maps, drawings, blueprints, and other documents relating to the company's operation. Blueprints consist of machines the Homestake Mining Company used and the buildings that they built. This collection also contains various geological, metallurgical, and engineering maps of the mine.

Dates: 1962-08-18

A-31-010-1 -- Hydro No. 1 Group "L", 1957-11-15

 Item — Cabinet Multi-Drawer A, Drawer: 31, Folder: 1
Scope and Contents From the Collection:

The Homestake Mining Company Maps and Blueprints Collection contains a wide variety of maps, drawings, blueprints, and other documents relating to the company's operation. Blueprints consist of machines the Homestake Mining Company used and the buildings that they built. This collection also contains various geological, metallurgical, and engineering maps of the mine.

Dates: 1957-11-15

A-31-010-2 -- Hydro No. 2 Group "M", 1957-12-18

 Item — Cabinet Multi-Drawer A, Drawer: 31, Folder: 2
Scope and Contents From the Collection:

The Homestake Mining Company Maps and Blueprints Collection contains a wide variety of maps, drawings, blueprints, and other documents relating to the company's operation. Blueprints consist of machines the Homestake Mining Company used and the buildings that they built. This collection also contains various geological, metallurgical, and engineering maps of the mine.

Dates: 1957-12-18

A-31-10 -- Homestake Mining Co. - Hydro Electric No. 1 Hydro Electric No.2

 Item — Cabinet 13, Drawer: 5
Scope and Contents From the Collection:

The Homestake Mining Company Maps and Blueprints Collection contains a wide variety of maps, drawings, blueprints, and other documents relating to the company's operation. Blueprints consist of machines the Homestake Mining Company used and the buildings that they built. This collection also contains various geological, metallurgical, and engineering maps of the mine.

Dates: 1877 - 2007

A-31-010 L -- Homestake Mining Co. Hydro Electric No 1, 1922-11

 Item — Cabinet Multi-Drawer A, Drawer: 31, Folder: 1
Scope and Contents From the Collection:

The Homestake Mining Company Maps and Blueprints Collection contains a wide variety of maps, drawings, blueprints, and other documents relating to the company's operation. Blueprints consist of machines the Homestake Mining Company used and the buildings that they built. This collection also contains various geological, metallurgical, and engineering maps of the mine.

Dates: 1922-11

A-31-011-1 -- Hanna Group

 Item — Cabinet Multi-Drawer A, Drawer: 31, Folder: 1
Scope and Contents From the Collection:

The Homestake Mining Company Maps and Blueprints Collection contains a wide variety of maps, drawings, blueprints, and other documents relating to the company's operation. Blueprints consist of machines the Homestake Mining Company used and the buildings that they built. This collection also contains various geological, metallurgical, and engineering maps of the mine.

Dates: 1877 - 2007

A-31-011-2 -- Englewood Group "O" & Hanna Group "P", 1958-03-26

 Item — Cabinet Multi-Drawer A, Drawer: 31, Folder: 1
Scope and Contents From the Collection:

The Homestake Mining Company Maps and Blueprints Collection contains a wide variety of maps, drawings, blueprints, and other documents relating to the company's operation. Blueprints consist of machines the Homestake Mining Company used and the buildings that they built. This collection also contains various geological, metallurgical, and engineering maps of the mine.

Dates: 1958-03-26