Alamo Prospect

Occurrence in Bonner county in Idaho, United States with commodities Gold, Copper, Silver, Lead, Zinc
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. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10069946
MRDS ID W007744
Record type Site
Current site name Alamo Prospect
Related records 10119799

Geographic coordinates

Geographic coordinates: -116.24045, 48.19347 (WGS84)
Elevation 975
Relative position 1 1/2 MI E OF DENTON SIDING; 5 MI NW OF CLARK FORK

Site location context

Political divisions (FIPS codes)

Bonner(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Clark Fork(quadrangle 1:24,000 scale)

Sandpoint(quadrangle 1:100,000 scale)

Sandpoint(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Pend Oreille Lake(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Idaho Bonner

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 056N 002E 20 Idaho

Comments on the location information

  • W. SLOPE OF HOWE MOUNTAIN; 1 MI N OF CLARK FORK RIVER

Commodities

Commodity Importance
Gold Primary
Copper Primary
Silver Primary
Lead Secondary
Zinc Critical Tertiary

Comments on the commodity information

  • AU, AG, PB VALUES PROBABLY REFLECT LOCAL HIGH GRADE SAMPLES.

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore
Covellite Ore
Galena Ore
Malachite Ore
Magnetite Gangue
Pyrite Gangue
Quartz Gangue
Specularite Gangue

Alteration

  • (Local) Chlorite; Oxidation (Limonite And Malachite Stains)

Analytical data

Result ASSAYS OF ORE SAMPLES: 0.02 - 3.0 OZ AU
Result 0.74 - 15.6 OZ AG
Result 0.4 - 7.0% CU
Result 0.8 - 11.0% PB
Result 0.0% ZN
Result 15.5 - 17.1% FE.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Porphyry > Lamprophyre
    Rock unit name Lamprophyre Dike
    Rock description Lamprophyre Dike
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Wallace Formation-Quartzites, Some Beds Shale And Sandstone;St. Regis Formation-Shales, Sandstones
    Rock description Wallace Formation-Quartzites, Some Beds Shale And Sandstone;St. Regis Formation-Shales, Sandstones
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Plutonic Rock > Porphyry > Lamprophyre

Nearby scientific data

(1) -116.24045, 48.19347

Economic information

Geologic structures

Type of structure Local
Structure description Vein Shows Little Brecciation Of Post - Mineral Movement

Ore body information

  • General form TABULAR
    Strike N 85 DEG E
    Dip 75 DEG NW
    Width 1.83M
  • General form TABULAR
    Dip 75 DEG NW

Controls for ore emplacement

  • Faulting

Comments on the geologic information

  • ST. REGIS BEDS STRIKE N 10 DEG E AND DIP 62 DEG SE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Clark Fork District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Nina Owen

Workings at the site

  • Type of workings Surface/Underground
    Length 121.92M

Comments on the workings information

  • VEIN EXPLORED BY SEVERAL CUTS AND A TUNNEL

Comments on development

  • ALAMO NO. 2 CLAIM IS PATENTED

Reference information

Bibliographic references

  • Deposit

    ANDERSON, A. L., 1930, GEOLOGY AND ORE DEPOSITS OF THE CLARK FORK DISTRICT, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY BULL., NO. 12, 132 P.

  • Deposit

    SAVAGE, C. N., 1967, GEOLOGY AND MINERAL RESOURCES OF BONNER COUNTY: IDAHO BUREAU OF MINES AND GEOLOGY COUNTY REPORT NO. 6, 131 P.

  • Deposit

    1930 GEOLMAP IDAHO BUREAU OF MINES & GEOL. BULL. 12

  • Deposit

    1967 GEOLMAP IDAHO BUREAU OF MINES & GEOL. CO. REPT. 6

General comments

Subject category Comment text
Deposit VEIN MAY BE TRACED FROM SURFACE EXPOSURES FOR MORE THAN 0.5 MI; IN PLACES THE VEINS DIP VERTICALLY OR EVEN STEEPLY S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Miller, Pat J. U.S. Geological Survey

Beyond USGS

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