Monument Mine

Past Producer in Lemhi county in Idaho, United States with commodities Gold, Selenium, Copper, Silver, Tellurium
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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10105690
MRDS ID W014239
MAS/MILS ID 0160590390
Record type Site
Current site name Monument Mine
Alternate or previous names Singiser, Singeiser, Singheiser, Singiser-Monument Mine, Monument Cove

Geographic coordinates

Geographic coordinates: -114.41313, 44.86269 (WGS84)
Elevation 1768
Relative position 6 MI W RABBITFOOT, 12 MI SW FORNEY

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Meyers Cove Point(quadrangle 1:24,000 scale)

Challis(quadrangle 1:100,000 scale)

Challis(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Middle Fork Salmon(hydrologic unit)

Salmon(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Salmon-Challis 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 Lemhi

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 018N 017E 23,25,26 E2SE (25) Idaho

Comments on the location information

  • Jct. Arrastre Cr And Silver Cr

Commodities

Commodity Importance
Gold Primary
Selenium Tertiary
Copper Tertiary
Silver Tertiary
Tellurium Critical Tertiary

Materials information

Materials Type of material
Quartz Gangue

Analytical data

Result VEIN AVG. VALUE $14 AU, AG/TON (1902), PAY STREAK RANGE $60 - 100 AU, AG/TON, 50 % AU, 50 % AG (1902)

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Challis Volcanics
    Rock description Challis Volcanics-Rhyolite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -114.41313, 44.86269

Economic information

Ore body information

  • Strike N 40 DEG E
    Dip 65 DEG NW
    Depth to bottom 91.44M
  • Strike N 17 DEG E
    Dip 69 DEG
    Width 9.14M

Controls for ore emplacement

  • Fissure
  • Breccia Zone

Comments on the geologic information

  • Original ore control entry:
    Fissure, Breccia Zone

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1872

Mining district

District name Gravel Range District

Land status

Ownership category National Forest
Area name Salmon National Forest

Ownership information

  • Type Owner
    Owner Oregon Idaho Co.
  • Type Owner
    Owner Quantex Corp.

Workings at the site

  • Type of workings Underground
    Length 914.4M
    Overall depth 60.96M

Comments on the workings information

  • 3 Levels

Comments on development

  • Econ.Com: Production Operated By Arrastre; Halted By Inefficient Method Of Treatment

Reference information

Bibliographic references

  • Deposit

    Carr, H. S., 1909, Vein Structure In The Monument Mine: Mining And Scientific Press, V. 98, No. 16, P. 557 - 558.

  • Production

    Umpleby, J. B., 1913, USGS Bulletin 528, 182 P.

  • Deposit

    Umpleby, J. B., 1913, Geology And Ore Deposits Of Lemhi County, Idaho: USGS Bulletin 528, 182 P.

  • Deposit

    Ross, C. P., 1927 , Ore Deposits In The Tertiary Lava In The Salmon River Mountains, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 25 , 20 P.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1976 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey
Reporter 15-OCT-1990 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.