Geology Plan Maps
Found in 5950 Collections and/or Records:
2791 -- Homestake Mining Company - Bald Mountain Plans, Mine Workings, Claims: Portland Mine Workings, Scale 80 per inch, Portland 29-5, 1-80 MU 2 1030, 1934-05
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.
2793 -- Portland Group of Mines - Portland 122 - Portland Gustavus Paragon - Claims and undg. 30-9 (with Surface Plats)
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.
2794 -- Portland Group of Mines - Portland 123 (with Surface Plats)
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.
2796 -- Upper Contact Workings - Bald Mountain Mining Co.-Trojan, SD. -Flat ore workings sublevel Below flat are workings (with Surface Plats)
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.
2798 -- Homestake Mining Company - Bald Mountain Plans, Mine Workings, Claims: Bald Mountain Misc. Contact Working 1-80
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.
2799 -- Homestake Mining Company - Bald Mountain Plans, Mine Workings, Claims: Porphyry Contact Workings, Bald Mountain Mining Co., Porphyry contact workings sublevel above porphyry contact
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.
2800 -- Homestake Mining Company - Bald Mountain Plans, Mine Workings, Claims: Upper Contact Workings, Bald Mountain Mining Co., Trojan, S. Dak., Flat ore workings sublevel below flat ore workings
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.
2801 -- Homestake Mining Company - Bald Mountain Plans, Mine Workings, Claims: Bald Mountain Mining Co., Trojan, S. Dak. , Map of the Upper Contact Workings, Flat ore workings sublevel below flat ore level
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.
2802 -- Homestake Mining Company - Bald Mountain Plans, Mine Workings, Claims: Porphyry Contact Workings, Bald Mountain Mining Co., Trojan, S. Dak., Porphyry contact workings sublevel aborve porphyry contact
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.
2803 -- Homestake Mining Company - Bald Mountain Plans, Mine Workings, Claims: Bald Mountain Mining Co., Trojan, S. Dak. Map of the Porphyry Contact Workings, Porphyry contact workings sublevel above porphyry contact
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.