Shamrock Prospect

Past Producer in Kootenai county in Idaho, United States with commodities Lead, Silver, Copper
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. Reporter information

Geologic information

Identification information

Deposit ID 10096437
MRDS ID W019446
MAS/MILS ID 0160550008
Record type Site
Current site name Shamrock Prospect

Geographic coordinates

Geographic coordinates: -116.64915, 47.84176 (WGS84)
Elevation 808
Relative position 12.5 MI NNE OF COEUR D'ALENE

Site location context

Political divisions (FIPS codes)

Kootenai(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hayden Lake(quadrangle 1:24,000 scale)

Coeur D'Alene(quadrangle 1:100,000 scale)

Spokane(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Spokane(hydrologic unit)

Spokane(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Idaho Panhandle National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Idaho Kootenai

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 052N 003W 24 NWSENW Idaho

Commodities

Commodity Importance
Lead Primary
Silver Primary
Copper Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Tetrahedrite Ore
Ankerite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Gouge
  • (Local) Chloritization
  • (Local) Sericitization
  • (Local) Silicification

Host and associated rocks

  • Host or associated Host
    Rock type
    Rock unit name Wallace Formation
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock type qualifier Limy
    Rock unit name Wallace Formation
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Argillite
    Rock unit name Wallace Formation
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -116.64915, 47.84176

Economic information

Geologic structures

Type of structure Regional
Structure name Faulted Anticlinal Uplift Of WNW Trend

Ore body information

  • Strike N 17 DEG E
    Dip 85 DEG NW

Controls for ore emplacement

  • Shear Zone

Comments on the geologic information

  • Original Structures entry:
    Regional - Broad Much - Faulted Anticlinal Uplift Of Wnw Trend
  • Original alteration entry:
    Local - Gouge; Chloritization; Sericitization; Silicification

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Hayden Lake District

Land status

Ownership category National Forest
Area name Coeur d'Alene National Forest

Ownership information

  • Type Owner
    Owner Shamrock Silver Mining Co.
    Home office P.O. Box 2416 \nYakima, WA 98907
    First year 1980

Workings at the site

  • Type of workings Underground
    Length 426.72M

Comments on development

  • 5 Unpatented Claims

Reference information

Bibliographic references

  • Deposit

    Anderson, A. L., 1940 , Geology And Metalliferous Deposits Of Kootenai County, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 53 , 67 P

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1974 Miller, Pat J. U.S. Geological Survey
Reporter 22-MAY-1986 Kauffman, John D. U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Current status (per MSHA)

StatusAbandoned since 10/01/1983
MSHA mine ID1001461
Mine name (MSHA)Shamrock Mine
Current operatorShamrock
Current controller (parent)Brown Lester C-George H Brown-Ed Rygaard
Mine typeUnderground (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

External references