Diamond Drilling
Found in 175 Collections and/or Records:
1550 foot level, 9 Ledge, N83-84 Stope, Underground Ore Estimate File, 1992
Homestake Ore Reserve file for the 1550 Level, 9 Ledge, N83-84 Stope. Used for Kadri's Study 8/92. Containing cross-sections, plan maps, stope ore back sample maps, and diamond drill holes used to make the ore estimate.
1700 foot level, 7 Ledge, N61-63 Stope, Underground Ore Estimate File, 1992
Homestake Ore Reserve file for the 1700 Level, 7 Ledge, N61-63 Stope. Used for Kadri's Study 8/92. Containing cross-sections, plan maps, stope ore back sample maps, and diamond drill holes used to make the ore estimate.
1740-1-60 -- Drain Pipe & Plug Diamond Drill Holes Designed by Carlson, 1921-08-08
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.
1850 foot level, 7 Ledge, N56-59 Stope, Underground Ore Estimate File, 1992
Homestake Ore Reserve file for the 1850 Level, 7 Ledge, N56-59 Stope. Used for Kadri's Study 8/92. Containing cross-sections, plan maps, stope ore back sample maps, and diamond drill holes used to make the ore estimate.
2300 foot level, 9 Ledge, N47-49 Stope, Underground Ore Estimate File, 1992
Homestake Ore Reserve file for the 2300 Level, 9 Ledge, N47-49 Stope. Used for Kadri's Study 8/92. Containing cross-sections, plan maps, stope ore back sample maps, and diamond drill holes used to make the ore estimate.
2711 -- Golden Reward Diamond Drilling, 1965 - 1966
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.
2714 -- Diamond Drill Holes 22-23-24-25 Winze #5
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.
2900'-3500' No.7 Ledge Diamond Drill Program - 2900' Level View 75' Slice Above & Below, 1999-01-13
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.
2900'-3500' No.7 Ledge Diamond Drill Program - 3050' Level View 75' Slice Above & Below, 1999-01-13
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.
2900'-3500' No.7 Ledge Diamond Drill Program - 3050' Level View 75' Slice Above & Below, 1999-01-13
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.