The Diamond Hill Mine is a gold mine located in Broadwater county, Montana.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Diamond Hill Mine MRDS details
Site Name
Primary: Diamond Hill Mine
Secondary: North Zone
Secondary: Glory Hill Zone
Commodity
Primary: Gold
Secondary: Tungsten
Secondary: Bismuth
Secondary: Silver
Location
State: Montana
County: Broadwater
District: Indian Creek District
Land Status
Not available
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Owner Name: Calim Private Equity LLC
Percent: 100.0
Owner Name: Palmer Engh,
Home Office: Box 231, Townsend, Montana
Production
Year: 1996
Material type: Pegasus Gold Inc 1997 10-K p. 8
Year: 2000
Time Period: 1880-2000
Mined: 760000.000 mt
Material type: ore
Year: 1997
Material type: Pegasus Gold Inc. 1997 10-K pp. 8, 14.
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Skarn Au
Operation Type: Underground
Milling Method: Gravity
Year First Production: 1885
Discovery Year: 1877
Discovery Method: Unknown
Years of Production:
Organization:
Significant: Y
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Elkhorn Mountains
Mineral Deposit Model
Model Name: Skarn Au
Orebody
Form: TABULAR, CHIMNEYLIKE ORE SHOOTS
Structure
Type: R
Description: Boulder Batholith, Lombard Overthrust
Type: L
Description: Aplite And Quartz Diorite Dikes
Alterations
Alteration Type: L
Alteration: SILICIFICATION AND BLEACHING
Rocks
Name: Diorite
Role: Associated
Description: SYENODIORITE; QUARTZ DIORITE
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Description: SYENODIORITE; QUARTZ DIORITE
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Pyrite
Ore: Limonite
Ore: Scheelite
Ore: Gold
Ore: Chalcopyrite
Comments
Comment (Deposit): Discovery Year: LATE 1870'S
Comment (Geology): Pegasus Gold 1996 10-K contains a succinct geological description.
Comment (Production): REED REPORTS TOTAL PRODUCTION 1880-1900'S AS $500,000 WITH GRADE UP TO 16 TOZ/ST AU. GRADE OF MATERIAL MINED SINCE 1940 RANGED FROM 0.1 TO 0.5 TOZ PRODUCTION HAS BEEN ESTIMATED FROM DOLLAR VALUE AND ASSUMED AVERAGE GRADE OF 0.4 TOZ/ST AU.
Comment (Deposit): ?NORTH-TRENDING METAMORPHOSED ZONE CUT BY ERRATICALLY DISTRIBUTED BUT ABUNDANT SEAMS AND IRREGULAR STINGERS, PIPELIKE SHOOTS, AND DISTINCT VEINS? (KLEPPER AND OTHERS, 1971)
Comment (Geology): ?IN A NORTH-TRENDING BELT OF METAMORPHOSED TUFF IN THE ELKHORN MOUNTAINS VOLCANICS ADJACENT TO THE SILVER WAVE STOCK? (KLEPPER AND OTHERS, 1971). STRIKES N07W, DIPS 40 TO 85 NE; RANGES FROM 50 FEET TO 175 FEET IN WIDTH. (REED, 1971).
Comment (Exploration): 1880 TO EARLY 1900?S - A SCOTTISH COMPANY ACQUIRES AND DEVELOPS DEPOSIT. 1931 - ANACONDA COMPANY DRILLING PROGRAM. 1940?S - SMALL AMOUNT OF DEVELOPMENT. 1970 - DUVAL OPTIONED CLAIMS; EXPLORATION WORK. 1971(?) - AMAX OPTIONED PROPERTY AND HAD DRILLING PROGRAM. 1998 - PEGASUS FILES FOR BANKRUPTCY, REORGANIZES AS APOLLO GOLD. 1999 - PEGASUS SUSPENDS OPERATIONS AT DIAMOND HILL BECAUSE OF LOW CASH FLOW
Comment (General): PATENTED CLAIMS INCLUDE: MODOC CHIEF, DIAMOND HILL, GOLD HILL, GOLD HILL FRACTION, CROWN HILL, PRIMROSE LODE, CROWN HILL FRACTION, DIAMOND, PEACOCK, CARRIBOO, CARBONATE, WHALE.
Comment (Workings): DEVELOPMENT WORKINGS INCLUDE 8 ADITS, SEVERAL SMALL OPEN CUTS AND ONE SHALLOW PROSPECT SHAFT. MOST ORE PRODUCED WAS EXTRACTED BY GLORY HOLE METHODS; MORE RECENT PRODUCTION FROM SURFACE "POCKET HUNTING" VENTURES.
Comment (Reserve-Resource): MINERALIZED AREA ABOUT 2700 FT BY 100 FT WIDE BY 250 FT DEEP CONTAINS 5.6 MILL. ST. HIGH GRADE SHOOTS HAVE BEEN MINED, BUT TOTAL ORE AND WASTE ALMOST CERTAINLY LESS THAN 600,000 ST.
References
Reference (Deposit): REED, G. C., 1951, MINES AND MINERAL DEPOSITS (EXCEPT FUELS), BROADWATER COUNTY, MONTANA: U.S. BUREAU OF MINES INF. CIRC. 7592, 58 P
Reference (Production): USBM IC 7592
Reference (Geology): KLEPPER, M.R., RUPPEL, E.T, FREEMAN, V.L., AND WEEKS, R.A., 1971, GEOLOGY AND MINERAL DEPOSITS, EAST FLANK OF THE ELKHORN MOUNTAINS, BROADWATER COUNTY, MONTANA: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 665, 66 P
Reference (Deposit): CORRY, A.V., 1933, SOME GOLD DEPOSITS OF BROADWATER, BEAVERHEAD, PHILLIPS, AND FERGUS COUNTIES, MONTANA: MONTANA BUREAU OF MINES AND GEOLOGY MEMOIR 10, P. 22.
Principal Gold Districts of Montana
In Montana, 54 mining districts have each have produced more than 10,000 ounces of gold. The largest producers are Butte, Helena, Marysville, and Virginia City, each having produced more than one million ounces. Twenty seven other districts are each credited with between 100,000 and one million ounces of gold production. Read more: Principal Gold Districts of Montana.
