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Geology

 Subject
Subject Source: Library of Congress Subject Headings

Found in 9217 Collections and/or Records:

Portland Mine - Scale 1"=60' (with Surface Plats)

 Item — Cabinet 13, Drawer: 9
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

Proposed Desorption Flow Circuit

 Item — Cabinet 4, Drawer: 4
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

Proven Ore Reserves by Level (Division V, 6950-8000)

 Item — Cabinet 13
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

Proven Ore Reserves by Level (Division V, 6950-8000

 Item — Cabinet 13, Drawer: 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: 1877 - 2007

Ross E-28-30 2750 Level, 1991-12-11

 Item — Cabinet Tan Cabinet 15
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: 1991-12-11

Ruby Flat, 1951-08

 Item — Cabinet 13, Drawer: 9
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: 1951-08

S. 9 Ledge, 9L-25, Pillar to 27 S. Pillar, S. 9 Ledge - CL 1 S. Stope 9 Ldge

 Item — Cabinet 10, Drawer: 10, Side: Left
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

S. 9 Ledge, 9L-25, Pillar to 27 S. Pillar, S. 9 Ledge - CL 2 S. Pillar 9 Ledge

 Item — Cabinet 10, Drawer: 10, Side: Left
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

S. 9 Ledge, 9L-25, Pillar to 27 S. Pillar, S. 9 Ledge - CL 2 S. Stope 9 Ledge

 Item — Cabinet 10, Drawer: 10, Side: Left
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