Muldoon Mine

Past Producer in Blaine county in Idaho, United States with commodities Lead, Silver, Zinc, 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. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10071921
MRDS ID W015695
Record type Site
Current site name Muldoon Mine
Related records 10217240

Geographic coordinates

Geographic coordinates: -113.8872, 43.6033 (WGS84)
Elevation 2316
Relative position 29.75 MI W OF ARCO

Site location context

Political divisions (FIPS codes)

Blaine(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Muldoon(quadrangle 1:24,000 scale)

Arco(quadrangle 1:100,000 scale)

Idaho Falls(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Little Wood(hydrologic unit)

Upper Snake(hydrologic accounting unit)

Upper Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Sawtooth National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Idaho Blaine

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 003N;003N 021E;022E 12;07 Idaho

Comments on the location information

  • ON W SIDE OF CANYON OF MULDOON CREEK LESS THAN 3 MI ABOVE CANYON'S MOUTH AT ALTITUDE 6800-8000 FT

Commodities

Commodity Importance
Lead Primary
Silver Primary
Zinc Critical Tertiary
Copper Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Sphalerite Ore
Feldspar Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Sericitization

Analytical data

Result ORE ON LEVEL 5 CONTAINED 50-60% PB, 45 OZ AG/TON
Result AT SURFACE ORE REPORTED TO CONTAIN 70% PB

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Quartz Monzonite Porphyry
    Rock description Quartz Monzonite Porphyry
    Stratigraphic age (youngest) Early Permian
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Cu Basin Formation: Quartzitic And Slaty Rocks
    Rock description Cu Basin Formation: Quartzitic And Slaty Rocks

Nearby scientific data

(1) -113.8872, 43.6033

Economic information

Ore body information

  • Strike N 30 DEG W
    Dip 30 DEG NE
    Width 9.14M

Controls for ore emplacement

  • Bedding Of Quartzitic And Slaty Rocks And Along Contact Of Quartzite And Porphyry

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1881

Mining district

District name Little Wood River District

Land status

Ownership category National Forest
Area name Sawtooth National Forest

Comments on the production information

  • $200,000 PRODUCTION FOR ITEM 8, ITEM 9 IN LATER YEARS; ITEM 17 WAS SEVERAL HUNDRED TONS; ITEM 8 GRADE FROM UMPLEBY (1917)

Workings at the site

  • Type of workings Underground
    Overall depth 121.92M

Comments on the workings information

  • 5 LEVELS WITH SEVERAL THOUSAND FT OF DRIFTS AND CROSSCUTS

Reference information

Bibliographic references

  • Deposit

    ANDERSON, A. L., AND WAGNER, W. R., 1946, A GEOLOGICAL RECONNAISSANCE IN THE LITTLE WOOD RIVER (MULDOON) DISTRICT, BLAINE COUNTY, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 75, 22 P.

  • Deposit

    UMPLEBY, J. B., 1917, GEOLOGY AND ORE DEPOSITS OF THE MACKAY REGION, IDAHO: USGS PROF. PAPER 97, 129 P.

  • Deposit

    NELSON, W. H., AND ROSS, C. P., 1968, GEOLOGY OF PART OF THE ALDER CREEK MINING DISTRICT, CUSTER COUNTY, IDAHO: USGS BULL. 1252-A, 30 P.

  • Deposit

    MOORE, F. C., 1910, ELEVENTH ANNUAL REPORT OF THE MINING INDUSTRY OF IDAHO FOR THE YEAR 1909.

  • Deposit

    1917 GEOLMAP UMPLEBY, J. B., PROF. PAPER 97

  • Deposit

    1946 RECON IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 75

  • Deposit

    1968 GEOLMAP NELSON, W. H. AND ROSS, C. P., BULL. 1252-A

  • Production

    ANDERSON, A. L., AND WAGNER, W. R., 1946, IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 75

General comments

Subject category Comment text
Deposit DEPOSIT TRENDS N 8-45 DEG W AND DIPS 23-40 DEG NE

Reporter information

Type Date Name Affiliation Comment
Reporter 1976-08-01 Everett, Sandra E. (Miller, Pat) U.S. Geological Survey

Beyond USGS

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

External references