Jumbo Deposit

Past Producer in Lemhi county in Idaho, United States with commodities Lead, Silver, Zinc, 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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10106652
MRDS ID D006770
MAS/MILS ID 0160590816
Record type Site
Current site name Jumbo Deposit
Alternate or previous names Democrat No. 4, Emil, Glendale, McKinley, Fairview and Jumbo Claims

Geographic coordinates

Geographic coordinates: -113.3161, 44.4825 (WGS84)
Elevation 2365
Relative position 3 MI NW OF GILMORE, ID.

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

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 013N 026E 01,02 Idaho

Comments on the location information

  • Adjacent to, and NE of the Hilltop Mine. Adjacent to, and SW of the Democrat Adit.

Commodities

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

Materials information

Materials Type of material
Chalcopyrite Ore
Sphalerite Ore
Quartz Gangue

Alteration

  • (Local) Deep Oxidation

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -113.3161, 44.4825

Economic information

Geologic structures

Type of structure Regional
Structure description Paleozoic Rocks Form Homoclinal Sequence Dipping 45 Deg E Or Ne Toward The Valley.

Controls for ore emplacement

  • Some Ore Occurs In And Along Narrow Breccia-Filled Fissures That Strike Nw-N And Cross Bedding That Is Striking N And Dipping E

Economic information about the deposit and operations

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

Mining district

District name Texas District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner J. Howard Sims
    Home office Salmon, Id.
    First year 1970
  • Type Owner
    Owner J. Howard Sims, Salmon, Id., And Olwen And Emlyn Griffiths

Comments on the workings information

  • Winze, and adit of the Old Jumbo Mine, numerous pits and trenches, as well as an adit driven under O.M.E. Contract from 1963-1965

Comments on development

  • O.M.E. Contract Z167 (Pocket No. 6286) was completed in 1965

Reference information

Bibliographic references

  • Deposit

    Commodity Files, U.S.G.S., Spokane, Wa

  • Deposit

    Umpleby, E.L., 1913, Geology And Ore Deposits Of Lemhi County, Idaho: USGS Bulletin 528

  • Deposit

    V.E. Mitchell, Et. Al; Mines And Prospects Map Series, 1981, Dubois Quad, Location No. 173

General comments

Subject category Comment text
Deposit For more information see O.M.E. Pocket No. 6286 ; Info.Src : 2 Unpub Rept

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1981 Lewis, Reed S. (Orris, Greta J.) U.S. Geological Survey
Reporter 13-MAR-1995 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.