Jack Lode

Occurrence in Jefferson county in Montana, United States with commodities Gold, Silver
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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10022863
MRDS ID FS00365
Record type Site
Current site name Jack Lode

Geographic coordinates

Geographic coordinates: -111.95226, 46.27462 (WGS84)
Elevation 1987
Relative position 1/4 MILE SW OF ELKHORN

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Elkhorn(quadrangle 1:24,000 scale)

Townsend(quadrangle 1:100,000 scale)

White Sulphur Springs(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Boulder(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 Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 006N 003W 14,15 Montana

Commodities

Commodity Importance
Gold Tertiary
Silver Tertiary

Analytical data

Result ASSAY REPORT AU .25 OZ/TON, AG - .1 OZ/TON

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
    Rock unit name Boulder Batholith, Qtz Monzonite
    Rock description Boulder Batholith, Qtz Monzonite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -111.95226, 46.27462

Economic information

Ore body information

  • General form IRREGULAR
    Strike N 15 DEG E
    Dip SE 60 DEG
    Length 2.13M
    Width 1.52M

Comments on the geologic information

  • GEOLOGY IS RATHER COMPLICATED. MESOZOIC SEDIMENTARY WERE OVERLAIN AND METAMORPHOSE BY EARLY CRETACEOUS VOLCANIC. LATE CRETACEOUS IGNEOUS INTRUSION FOLLOWED.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Discovery year 1936
Discoverer L. F. Carmody, W. W. Papesh

Mining district

District name Elkhorn

Ownership information

  • Type Owner
    Owner L. F. Carmady, W. W. Papesh

Comments on the workings information

  • NO. 2 TUNNEL - 5 FT BY 7 FT; NO. 3 TUNNEL - 5 FT BY 7 FT. STRIKES N 10 DEG E AND HAS A 65 DEG SW DIP.; HALF OF A FRAME DWELLING; 20 FT BY 20 FT HORSE BARN; SHED 15 FT BY 15 FT.

Reference information

Bibliographic references

  • Deposit

    1958 DIREXPL USFS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1976 Steward, Candis A. U.S. Geological Survey

Beyond USGS

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