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"Ruth" and "Margo" claims, 1967
Level of Description
File
Archival Collection
Blue Diamond Mine Corporate Records
Archival Component
Patent, no gypsum on 10-acre parcel, 1963
Level of Description
File
Archival Collection
Blue Diamond Mine Corporate Records
Archival Component
Internal company memos, gypsum deposits Nevada and Alaska, 1960
Level of Description
File
Archival Collection
Blue Diamond Mine Corporate Records
Archival Component
Maps, production, stripping, and United States Geologic Survey quadrangle, 1963-1978 and undated
Level of Description
File
Archival Collection
Blue Diamond Mine Corporate Records
Archival Component
Rock inventory, 1978-1981
Level of Description
File
Archival Collection
Blue Diamond Mine Corporate Records
Archival Component
Underground cave-in, 1973
Level of Description
File
Archival Collection
Blue Diamond Mine Corporate Records
Archival Component
Five-year mine plan, 1973-1981
Level of Description
File
Archival Collection
Blue Diamond Mine Corporate Records
Archival Component
Short-range mine plan, 1974
Level of Description
File
Archival Collection
Blue Diamond Mine Corporate Records
Archival Component
Mine plan, 1972-1995
Level of Description
File
Archival Collection
Blue Diamond Mine Corporate Records
Archival Component
Proposed mine plan analysis, 1980
Level of Description
File
Archival Collection
Blue Diamond Mine Corporate Records
Archival Component
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