Mine detail: Iron Mask Mine

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Location: Broadwater County, Montana, United States, North America
Lat / long: 46.34212, -111.66558
dep_id: 10071358
mrds_id: W014698
Commodity type: metallic
Major mineral: Silver, Copper
Minor mineral: Gold, Lead, Zinc, Manganese
Operation type: Unknown
Production size: Production occurred
Development status: Past Producer
ore: Galena, Pyrite, Sphalerite, Tetrahedrite
orebody_fm: TABULAR
work_type: Underground
ore_ctrl: Deposit Is In North-Trending Zone Of Stocks
Reporter: Krohn, Douglas H.
hrock_type: Andesite
arock_unit: Elkhorn Volcanics Andesite;Quartz Diorite Stocks
arock_type: Diorite,Andesite
Structure: Boulder Batholith, Lombard Overthrust, Large Northwest-Striking Fault About 15 Km Long Which Is About 1 Km North Of Adit
yfp_ba: <
Year first produced: 1905
References:
  • Deposit:: REED, G. C., 1951, MINES AND MINERAL DEPOSITS (EXCEPT FUELS), BROADWATER COUNTY, MONTANA: U.S. BUREAU OF MINES INF. CIRC. 7592
  • Deposit:: SCHELL, E. M., 1963, ORE DEPOSITS OF THE NORTHERN PART OF THE PARK (INDIAN CREEK) DISTRICT, BROADWATER CO., MONTANA: MONTANA BUREAU OF MINES AND GEOL. BULL. 35
  • Production:: REED (1951) USBM IC 7592
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