Keokirk-Elm Orlu Group

Past Producer in Beaverhead county in Montana, United States with commodities Silver, Copper, Gold
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. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10010831
MRDS ID D004822
Record type Site
Current site name Keokirk-Elm Orlu Group
Alternate or previous names Keokuk
Related records 10123719, 10269372, 10293903, 10269872

Geographic coordinates

Geographic coordinates: -112.937, 45.59156 (WGS84)
Elevation 2682
Relative position 13 AIR MILES WSW OF MELROSE

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Tahepia(quadrangle 1:24,000 scale)

Butte South(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Big Hole(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Beaverhead-Deerlodge 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 Montana Beaverhead

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 003S 011W 11,10 Montana

Commodities

Commodity Importance
Silver Primary
Copper Primary
Gold Secondary

Materials information

Materials Type of material
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Quartz Monzonite
    Rock description Quartz Monzonite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cambrian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite
    Rock unit name Hasmark;Park Formation
    Rock description Hasmark;Park Formation

Nearby scientific data

(1) -112.937, 45.59156

Economic information

Ore body information

  • General form IRREGULAR, TABULAR
    Width 1.52M

Controls for ore emplacement

  • In Fractured Dolomite Below, The Quartzite-Dolomite Contact.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1872
Discoverer William Spurr (Forrest Queen Lode)

Mining district

District name Hecla (Bryant) District

Land status

Ownership category Private

Comments on the production information

  • ONLY RECORDED PRODUCTION IS FROM THE BONAPARTE CLAIM.

Comments on the workings information

  • SEVERAL INCLINED SHAFTS AND ADITS EXTEND E-W TO SW-NE ALONG THE MINERALIZED ZONE.

Comments on development

  • 6 PATENTED CLAIMS: FORREST QUEEN; KEOKUK, MINNIE GAFFNEY, BONAPARTE, MOFFET AND MAYNARD, ELM ORLU

Reference information

Bibliographic references

  • Deposit

    MBMG MEM 25, P. 74-78.

  • Deposit

    MBMG BULL 85, P. 115-118.

  • Deposit

    1948 COMPILE M.B.M.G. MEM. 2

  • Production

    M.B.M.G. BULL. 85.

General comments

Subject category Comment text
Deposit KARLSTROM (1948) SUGGESTED THAT MINERALIZING SOLUTIONS ORIGINATED IN AN UNDERLYING QUARTZ MONZONITE SILL, AND MADE THEIR WAY UPWARD TO COLLECT BENEATH THE IMPERVIOUS PARK QUARTZITE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1980 Loen, Jeffrey S. (Pearson, Robert C.) U.S. Geological Survey

Beyond USGS

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