Black Pine Project

Site Name

Primary: Black Pine Project
Secondary: Blackpine Mine
Secondary: Shulenberger Prospect
Secondary: Cobalt Nos. 1, 2, 5, 6, 10, 15, and 16 Cobalt Nos. 1, 2, 5, 6, 10, 15, and 16

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Commodity

Primary: Copper
Primary: Cobalt
Secondary: Silver
Secondary: Gold
Tertiary: Nickel

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Location

State: Idaho
County: Lemhi
District: Blackbird Mining District

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Land Status

Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Administrative Organization: Salmon National Forest

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Holdings

Type: Located Claim

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Workings

Type: Surface/Underground

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Ownership

Owner Name: Montana Coal And Iron Co.
Home Office: Montana
Info Year: 1960

Owner Name: Formation Metals (Formation Capital Corp.)
Percent: 100.0
Home Office: Canada
Info Year: 1992

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Production

Not available

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Deposit

Record Type: Site
Operation Category: Past Producer
Plant Type: Leach
Plant Subtype: Hydromet
Operation Type: Surface
Mining Method: Open Pit
Milling Method: Leach-Solvent-Extract-Electrowin
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: Y
Deposit Size: S

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Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains

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Mineral Deposit Model

Model Name: Blackbird Co-Cu

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Orebody

Form: SHEAR ZONE

Form: IRREGULAR VEINLETS, STRINGERS, PODS

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Structure

Type: L
Structure: Bedding

Type: L
Structure: Syncline

Type: L
Structure: Reverse Faults

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Alterations

Alteration Type: L
Alteration: Oxidation

Alteration Type: L
Alteration: Chloritization

Alteration Type: L
Alteration: SERICITIC

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Rocks

Name: Quartzite
Role: Host
Age Type: Host Rock Unit
Age Young: Neoproterozoic

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Analytical Data

Analytical Data: CO GENERALLY LESS THAN 0.1%. BUT LOCALLY AS MUCH AS 2.7%
Analytical Data: MODERATE TONNAGE OF 6 % CU ORE
Analytical Data: THERE ARE HIGH GRADE BANDS OF SOLID CHALCOPYRITE IN VEIN

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Materials

Ore: Malachite
Ore: Covellite
Ore: Chalcocite
Ore: Bornite
Ore: Chalcopyrite
Gangue: Pyrite
Gangue: Limonite

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Comments

Comment (Exploration): THE DMEA HAS DONE A GOOD DEAL OF DEVELOPMENT WORK AT THIS PROPERTY. THE PROGRAM RESULTED IN THE DISCOVERY OF 29,800 ST OF INDICATED ORE WITH AN AVERAGE GRADE OF 6.1% COPPER AND 2,200 ST OF INFERRED ORE WITH AN AVERAGE GRADE OF 5.4% CU. IN 1994 EXPLORATION 5 OF 6 ZONES WERE TESTED; PROGRAM DISCOVER- ED 9.2 FT OF 1.249% CO AND 0.409 OZ AU/ST (14.02 G/MT).

Comment (Economic Factors): A NEARLY COMPLETE MILL FACILITY IS STILL LOCATED ON THE PROPERTY.

Comment (Geology): ORE IS BOTH CU-CO OXIDES AND CO-CU-AU SULFIDES.

Comment (Economic Factors): OLD UNDERGROUND MINE WORKING WILL BE OPENED UP, MAPPED, SAMPLED TO CONFIRM RESERVES AND DEFINE PRESENCE OF HIGH GRADE COBALT.

Comment (Economic Factors): MINE WAS LAST MINED IN THE 1960; THEIR ARE OVER 4500 FT OF UNDERGROUND WORKINGS.

Comment (Deposit): 2 VEINS

Comment (Development): FLOTATION MILL IN 1956 ; ECON.COM: HEAVY GROUND ALONG MINERALIZED SHEAR ZONES REQUIRES MUCH TIMBERING (SIX MILLSITES BEING VALIDLY USED IN CONJUNCTION WITH THESE CLAIMS - BLACK PINE, CROSS CUT COPPER, NO. 1 FRACTION, BIG COBALT, BIG COBALT NOS 1 AND 2)

Comment (Geology): BEDDING TRENDS NW AND DIPS NE ; GEOL.DESC: 2 VEIN ZONES:(A)CHALCOPYRITE-PYRITE ON 40-90 FT. NORTHWEST-STRIKING, NORTHEAST DIPPING SHEAR ZONE(NO COBALT);(B)QUARTZ VEIN CARRYING COBALTIAN ARSENOPYRITE 140 FT. NORTHEAST OF (A) ZONE; COUNTRY ROCK HIGHLY FOLDED.

Comment (Location): NEAR HEADWATERS OF N. BRANCH OF COPPER CREEK

Comment (Production): ITEM 1 WAS PROBABLY A TEST SHIPMENT (This statement doesn't make sense. No production was given in old MRDS record, or at least was not copied to new MRDS record.)

Comment (Workings): 5 ADITS TRENDING NW WITH DRIFTS TO SW; NUMEROUS TRENCHES

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References

Reference (Economic Factors): Forest Service Mineral EXAM 1958 PLUM

Reference (Deposit): MITCHELL, V.E., ET AL, 1982, ELK CITY QUAD: Idaho Bureau of Mines and Geology MINES AND PROSPECT 1982 MAP SERIES. scale 1:250,000.

Reference (Deposit): INTERATIONAL MINING NEWS, 9-28-94, P1.

Reference (Deposit): MINING RECORD, 8-10-94, P.3.

Reference (Deposit): THE NORTHERN MINER, 4-12-93, P.3.

Reference (Deposit): THE NORTHERN MINER, 6-21, 93, P.16.

Reference (Deposit): SHOCKEY, P.N., 1957, RECONNAISSANCE GEOLOGY OF THE LEESBURG QUADRANGLE, LEMHI COUNTY, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 113, 42 P.

Reference (Reserve-Resource): RANDOL MINING DIRECTORY, 1996/97, U.S. MINES & MINING COMPANIES, P. 194.

Reference (Reserve-Resource): RANDOL MINING DIRECTORY, 1994/95, U.S. MINES & MINING COMPANIES, P. 267.

Reference (Reserve-Resource): THE NORTHERN MINER, 11-1-93, P.1, 10.

Reference (Reserve-Resource): ITEM 1, UNPUBLISHED COBALT REPORT; ITEM 2, DMEA FILES

Reference (Deposit): JONES, R.W., 1959, BLACKPINE: IDAHO BUREAU OF MINES AND GEOLOGY OPEN-FILE REPT.

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Idaho Gold

"Where to Find Gold in Idaho" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Idaho. Read more: Where to Find Gold in Idaho.