Poorman Mine

The Poorman Mine is a silver and gold mine located in Owyhee county, Idaho at an elevation of 7,700 feet.

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

Name: Poorman Mine  

State:  Idaho

County:  Owyhee

Elevation: 7,700 Feet (2,347 Meters)

Primary Mineral: Silver, Gold

Lat, Long: 43.0142, -116.70940

Map: View on Google Maps


Satelite image of the Poorman Mine

Poorman Mine MRDS details

Site Name

Primary: Poorman Mine
Secondary: Oso
Secondary: Belle Peck Tunnels


Commodity

Primary: Silver
Primary: Gold
Tertiary: Copper
Tertiary: Lead
Tertiary: Zinc


Location

State: Idaho
County: Owyhee
District: Carson District


Land Status

Land ownership: Private


Holdings

Not available


Workings

Type: Underground


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1865
Discovery Year: 1865
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: M


Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Payette Section
Physiographic Detail: Owyhee Mountains


Mineral Deposit Model

Not available


Orebody

Form: IRREGULAR


Structure

Not available


Alterations

Alteration Type: L
Alteration Text: Silicification; Epidote; Chlorite; Sericite; Kaolin


Rocks

Name: Granite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Cretaceous

Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous

Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous


Analytical Data

Analytical Data: AU:AG RATIO AVERAGED 1:37.5 BY WEIGHT NEAR SURFACE, 1:5.6 ON INTERMEDIATE LEVELS, AND 1:1.1 ON LOWEST LEVEL.


Materials

Ore: Pyrargyrite
Ore: Cerargyrite
Ore: Gold
Ore: Polybasite
Ore: Owyheeite
Ore: Chalcopyrite
Ore: Stephanite
Ore: Sphalerite
Ore: Proustite
Ore: Silver
Gangue: Pyrite
Gangue: Quartz
Gangue: Calcite
Gangue: Marcasite


Comments

Comment (Location): ON WAR EAGLE MOUNTAIN (WESTERN SLOPE)

Comment (Development): 7 PATENTED CLAIMS ( 1937 )

Comment (Commodity): ORE WORTH $46 A TON IN 1870

Comment (Production): TOTAL PRODUCTION OF $3,200,000 (MAINLY DURING 1865 - 73). IN 1869 $380,000 WORTH OF AU AND AG WAS MINED

Comment (Workings): DEVELOPED BY 2 SHAFTS, RAISES, WINZES, AND ADITS TO TOTAL DEPTH OF 950 FT. ALSO THERE ARE 2 TUNNELS NAMED OSO AND BELLE PECK.

Comment (Geology): GRANODIORITE CUT BY GRANITE PORPHYRY.


References

Reference (Deposit): ASHER, R. R., 1968, GEOLOGY AND MINERAL RESOURCES OF A PORTION OF THE SILVER CITY REGION, OWYHEE COUNTY, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 138, 106 P.

Reference (Deposit): PIPER, A. M., AND LANEY, F. B., 1926, GEOLOGY AND METALLIFEROUS RESOURCES OF THE REGION ABOUT SILVER CITY, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY BULL. 11, 165 P.

Reference (Deposit): LINDGREN, W., 1898, THE GOLD AND SILVER VEINS OF SILVER CITY, DELAMAR AND OTHER MINING DISTRICTS IN IDAHO: 20TH ANN. REPORT, U.S.G.S. P. 75 (PART 3).

Reference (Deposit): CAMPBELL, A., 1935 , 37TH ANN. REPT. OF THE MINING INDUSTRY OF IDAHO FOR 1935.

Reference (Deposit): 1898 COMPILE W. LINDGREN 20TH ANN. REPT.

Reference (Deposit): 1926 GEOLMAP IDAHO BUREAU OF MINES & GEOL. BULL. 11

Reference (Deposit): 1935 DIREXPL CONSOLIDATED MIN. AND DREDGE CO.

Reference (Deposit): 1968 GEOLMAP IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 138

Reference (Production): LINDGREN, W., 1898 , USGS 20TH ANN. REPT. PT. 3 , P. 75 . RAYMOND, R. W., 1870 - 1873 , 41ST - 42ND CONGRESSES HOUSE OF REP. EX. DOCS.