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Box 1

 Container

Contains 14 Results:

Years to Date Ore Report, 1957 - 1966

 File — Box: 1, Folder: 1-5
Identifier: Series 4
Scope and Contents From the Collection: This collection includes the records of assays carried out by and for the Homestake Mining Company including assay sheets and ore estimates. Series I Dry Drills consists of assay sheets for samples taken from dry drill holes. Series II Assays consists of assays of ore from the South Dakota holdings of Homestake. These records include the assays for random grab pile and car samples as well as assays of...
Dates: 1957 - 1966

Monthly Drift Reports, 1957 - 1964

 File — Box: 1, Folder: 6-9
Identifier: Series 4
Scope and Contents From the Collection: This collection includes the records of assays carried out by and for the Homestake Mining Company including assay sheets and ore estimates. Series I Dry Drills consists of assay sheets for samples taken from dry drill holes. Series II Assays consists of assays of ore from the South Dakota holdings of Homestake. These records include the assays for random grab pile and car samples as well as assays of...
Dates: 1957 - 1964

Monthly Product Tons, 1978

 File — Box: 1, Folder: 10-11
Identifier: Series 4
Scope and Contents From the Collection: This collection includes the records of assays carried out by and for the Homestake Mining Company including assay sheets and ore estimates. Series I Dry Drills consists of assay sheets for samples taken from dry drill holes. Series II Assays consists of assays of ore from the South Dakota holdings of Homestake. These records include the assays for random grab pile and car samples as well as assays of...
Dates: 1978

Tons Drawn from Stope, 1960 - 1971

 File — Box: 1, Folder: 12-13
Identifier: Series 4
Scope and Contents From the Collection: This collection includes the records of assays carried out by and for the Homestake Mining Company including assay sheets and ore estimates. Series I Dry Drills consists of assay sheets for samples taken from dry drill holes. Series II Assays consists of assays of ore from the South Dakota holdings of Homestake. These records include the assays for random grab pile and car samples as well as assays of...
Dates: 1960 - 1971

Production by Level & Stope, 1932 - 1979

 File — Box: 1, Folder: 14-15
Identifier: Series 4
Scope and Contents From the Collection: This collection includes the records of assays carried out by and for the Homestake Mining Company including assay sheets and ore estimates. Series I Dry Drills consists of assay sheets for samples taken from dry drill holes. Series II Assays consists of assays of ore from the South Dakota holdings of Homestake. These records include the assays for random grab pile and car samples as well as assays of...
Dates: 1932 - 1979

Ore Projection, 1953 - 1963

 File — Box: 1, Folder: 16
Identifier: Series 4
Scope and Contents From the Collection: This collection includes the records of assays carried out by and for the Homestake Mining Company including assay sheets and ore estimates. Series I Dry Drills consists of assay sheets for samples taken from dry drill holes. Series II Assays consists of assays of ore from the South Dakota holdings of Homestake. These records include the assays for random grab pile and car samples as well as assays of...
Dates: 1953 - 1963

Differences Between Estimates and Recovered Gold, 1939 - 1952

 File — Box: 1, Folder: 17
Identifier: Series 4
Scope and Contents From the Collection: This collection includes the records of assays carried out by and for the Homestake Mining Company including assay sheets and ore estimates. Series I Dry Drills consists of assay sheets for samples taken from dry drill holes. Series II Assays consists of assays of ore from the South Dakota holdings of Homestake. These records include the assays for random grab pile and car samples as well as assays of...
Dates: 1939 - 1952

Ore Reserves, 1896 - 1897

 File — Box: 1, Folder: 18
Identifier: Series 4
Scope and Contents From the Collection: This collection includes the records of assays carried out by and for the Homestake Mining Company including assay sheets and ore estimates. Series I Dry Drills consists of assay sheets for samples taken from dry drill holes. Series II Assays consists of assays of ore from the South Dakota holdings of Homestake. These records include the assays for random grab pile and car samples as well as assays of...
Dates: 1896 - 1897

Ore Reserves Find Rate

 File — Box: 1, Folder: 19
Identifier: Series 4
Scope and Contents From the Collection: This collection includes the records of assays carried out by and for the Homestake Mining Company including assay sheets and ore estimates. Series I Dry Drills consists of assay sheets for samples taken from dry drill holes. Series II Assays consists of assays of ore from the South Dakota holdings of Homestake. These records include the assays for random grab pile and car samples as well as assays of...
Dates: 1895 - 2000; Majority of material found within 1940 - 1998

Ore Reserves Audit Reports, 1991

 File — Box: 1, Folder: 20
Identifier: Series 4
Scope and Contents From the Collection: This collection includes the records of assays carried out by and for the Homestake Mining Company including assay sheets and ore estimates. Series I Dry Drills consists of assay sheets for samples taken from dry drill holes. Series II Assays consists of assays of ore from the South Dakota holdings of Homestake. These records include the assays for random grab pile and car samples as well as assays of...
Dates: 1991