Latest Out Mine

Past Producer in Lemhi county in Idaho, United States with commodities Silver, Lead, Zinc, Gold, 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. Production statistics
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. Reporter information

Geologic information

Identification information

Deposit ID 10071996
MRDS ID W015798
MAS/MILS ID 160590312
Record type Site
Current site name Latest Out Mine

Geographic coordinates

Geographic coordinates: -113.2922, 44.4581 (WGS84)
Elevation 2438
Relative position 1 MI W OF GILMORE

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gilmore(quadrangle 1:24,000 scale)

Borah Peak(quadrangle 1:100,000 scale)

Dubois(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lemhi(hydrologic unit)

Salmon(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management ID)

Bureau of Land Management ID BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Idaho Lemhi

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 013N 027E 18 C W2 Idaho

Comments on the location information

  • In central part of Gilmore Division of Texas Mining District; Location from Gilmore 1:62500 Map

Commodities

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

Materials information

Materials Type of material
Galena Ore
Sphalerite Ore
Hematite Gangue
Iron Gangue
Limonite Gangue

Alteration

  • (Local) Oxidation

Analytical data

Result SULFIDES DECREASE WITH DEPTH: FROM SURFACE TO 200 FT DEPTH ORE HAS 35% PB, 7% ZN, 16 OZ AG, 0.025 OZ AU/TON
Result FROM 200-500 FT ORE HAS 32% PB, 3% ZN, 12 OZ AG, 0.025 OZ AU/TON

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Dike Quartz Diorite Porphyry
    Rock description Dike Quartz Diorite Porphyry
    Stratigraphic age (youngest) Late Devonian
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Paleocene
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Limestone;Quartzite
    Rock description Limestone;Quartzite

Nearby scientific data

(1) -113.2922, 44.4581

Economic information

Geologic structures

Type of structure Regional
Structure description Folding

Ore body information

  • General form LENS, IRREGULAR
    Strike NE
    Dip 70 DEG W
    Thickness 4.57M
    Length 30.48M
    Width 12.19M
    Depth to bottom 182.88M

Controls for ore emplacement

  • Fault, Fissures

Comments on the geologic information

  • Limestone and quartzite dip 25 Deg E

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1880
Year of first production 1880

Mining district

District name Texas District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Ralph Nichols
    First year 1909
  • Type Owner
    Owner Latest Out Mining And Smelting Co.
    First year 1913

Production statistics

  • Year 1913
    Period 1910-1913
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^25 - 45 % Pb, Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Lead Lead 35wt-pct

Comments on the production information

  • $350,000 gross production up to end of 1911, $130,000 of which was in 1910

Workings at the site

  • Type of workings Underground
    Length 609.6M
    Overall depth 146.3M

Comments on development

  • 1 claim

Reference information

Bibliographic references

  • Deposit

    Umpleby, J. B., 1913, Geology And Ore Deposits Of Lemhi County, Idaho: USGS Bulletin 528, P. 105.

  • Deposit

    Nichols, R., 1913, Lead-Silver Mines Of Gilmore, Idaho: Am. Inst. Mining Engineers Trans., V. 46, P. 937-939.

  • Deposit

    Bell, R. N., 1912, Thirteenth Annual Report Of The Mining Industry Of Idaho For The Year 1911.

  • Deposit

    Bell, R. N., 1913, Fourteenth Annual Report Of The Mining Industry Of Idaho For The Year 1912.

  • Deposit

    1913 Recon Umpleby, J. B., Bull 528

  • Production

    Item 8, Nichols, R., 1913, Am. Inst. Mining Engineers Trans., V. 46, P. 939; Items 1, 9, Umpleby, J. B., 1913, USGS Bulletin 528, P. 105; Item 2, Bell, R. N., 1912, Mining Industry Report For 1911; Item 3, Bell, R. N., 1913, Mining Industry Report For 1912

Reporter information

Type Date Name Affiliation Comment
Reporter 1976-06-01 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey
Reporter 1995-03-13 Western Field Operations Center (WFOC) U.S. Bureau of Mines

Beyond USGS

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

External references