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Environmental Control

 Subject
Subject Source: Local sources

Found in 66 Collections and/or Records:

Location Map and Title Sheet - Sheets 1-14 - C-1 -- C-14 --B-130-32 -- Construction Plans for Grizzly Gulch Dam Raise No.3 - Seepage Collection System Relocation - Homestake Mine,Lead, South Dakota, 1997-01-03

 Item — Cabinet 14, Drawer: 4, Folder: 10
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: 1997-01-03

PP306 -- 5754-19 -- Grizzly Gulch Basin - Finished Contour and Topographical Mapping -- Lead,S.D., 1987-05

 Item — Cabinet 14, Drawer: 4, Folder: 10
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: 1987-05

Proposed Ozone Treatment Site #2, 1978-08-29

 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: 1978-08-29

(Rt. Side of Map) - 9-10-11,000 E -- Grizzly Gulch Basin - Finished Contour and Topographical Mapping -- Lead,S.D., 1987-05

 Item — Cabinet 14, Drawer: 4, Folder: 10
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: 1987-05

(Rt. Side of Map) - 5,6,7,8,000E -- Grizzly Gulch Basin - Finished Contour and Topographical Mapping -- Lead,S.D., 1987-05

 Item — Cabinet 14, Drawer: 4, Folder: 10
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: 1987-05

Settling Dam, 1976-09-29

 Item — Cabinet 5, Drawer: 3
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: 1976-09-29