Oro Mine

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

Geologic information

Identification information

Deposit ID 10071165
MRDS ID W014406
Record type Site
Current site name Oro Mine
Related records 10168396

Geographic coordinates

Geographic coordinates: -115.84126, 44.00958 (WGS84)
Elevation 2957
Relative position 12 1/2 MI WSW OF LOWMAN

Site location context

Political divisions (FIPS codes)

Boise(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Grimes Pass(quadrangle 1:24,000 scale)

Deadwood River(quadrangle 1:100,000 scale)

Challis(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Boise-Mores(hydrologic unit)

Middle Snake-Boise(hydrologic accounting unit)

Middle Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Boise 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 Boise

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 008N 005E 22 Idaho

Comments on the location information

  • ON GRIMES CR. 1 MI. BELOW GRIMES PASS.

Commodities

Commodity Importance
Gold Primary
Silver Primary
Lead Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Sphalerite Ore
Tetrahedrite Ore
Calcite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Sericitized, Bleaching

Analytical data

Result SULFIDE BOULDERS ASSAYED 0.08 OZ AU/TON, 39.3 OZ AG/TON
Result QUARTZ ASSAYED 31.12 OZ AU/TON, 7.8 OZ AG/TON.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Dike-Quartz Diorite;Quartz Monzonite Porphyry Stock;Dikes-Rhyolite Porphyry;Idaho Batholith-Quartz Monzonite
    Rock description Dike-Quartz Diorite;Quartz Monzonite Porphyry Stock;Dikes-Rhyolite Porphyry;Idaho Batholith-Quartz Monzonite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -115.84126, 44.00958

Economic information

Ore body information

  • General form LENSES, PODS, BUNCHES, STRINGERS
    Strike N 10 DEG E
    Dip W

Controls for ore emplacement

  • Shear Zone; In Part, Contact With Dike; Fissure

Comments on the geologic information

  • SHEAR ZONE TRENDS N 10 DEG E, DIPS STEEPLY W.

Economic information about the deposit and operations

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

Mining district

District name Grimes Pass District

Land status

Ownership category National Forest
Area name Boise National Forest

Ownership information

  • Type Operator
    Owner Oro Mining Co.

Workings at the site

  • Type of workings Underground
    Overall depth 45.72M

Comments on the workings information

  • 2 TUNNELS, 2 SHAFTS

Comments on development

  • 25 TON MILL

Reference information

Bibliographic references

  • Deposit

    ANDERSON, A. L., 1947, GEOLOGY AND ORE DEPOSITS OF BOISE BASIN, IDAHO: USGS BULL. 944-C, P. 119 - 319.

  • Deposit

    GORDON, F., 1934, THE GEOLOGY OF THE ORO MINE, BOISE BASIN, IDAHO: MOSCOW, IDAHO, UNIV. OF IDAHO BS THESIS, 12 P.

  • Deposit

    1947 GEOLMAP ANDERSON, A. L., BULL. 944-

  • Production

    ANDERSON, A. L., 1947, USGS BULL. 944-C.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1976 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey

Beyond USGS

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