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  3. Mineral Resource Data System (MRDS)

Overlook Mine

Past Producer in Elmore county in Idaho, United States with commodities Silver, Gold, Lead
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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. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10089045
MRDS ID W007885
MAS/MILS ID 0160390630
Record type Site
Current site name Overlook Mine

Geographic coordinates

Geographic coordinates: -115.20784, 43.89708 (WGS84)
Elevation 2408
Relative position 7 1/2 MI. NW OF ATLANTA.

Site location context

Political divisions (FIPS codes)

Elmore(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nahneke Mountain(quadrangle 1:24,000 scale)

Idaho City(quadrangle 1:100,000 scale)

Hailey(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

North and Middle Forks Boise(hydrologic unit)

Middle Snake-Boise(hydrologic accounting unit)

Middle Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Boise 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 Elmore

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 007N 011E 32 Idaho

Commodities

Commodity Importance
Silver Primary
Gold Secondary
Lead Tertiary

Comments on the commodity information

  • Samples Taken From Several Trenches And Adits Contained 0.34-5.1 Grams Silver (Ave 0.08 Grams), 0.34-17.1 Grams Gold (Ave 0.1 Grams Gold) Per Tonne, And 0.03 Percent Lead.

Materials information

Materials Type of material
Hematite Gangue
Limonite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Oxidation, Fe Stains, Mn Stains

Analytical data

Result DUMP AND VEIN SAMPLES ASSAYED 0 - 0.16 OZ AU AND TRACE-0.1 OZ AG/TON
Result 1 VEIN SAMPLE ASSAYED 0.03 % PB
Result OTHER SAMPLES ALONG NE AND SW EXTENSIONS OF OVERLOOK VEIN HAD 0 - 0.5 OZ AU, 0.01 - 0.15 OZ AG/TON, 0 - 0.03 % PB

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Idaho Batholith-Granodiorite
    Rock description Idaho Batholith-Granodiorite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -115.20784, 43.89708
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Gouge

Ore body information

  • Strike N 40 DEG E
    Dip 50 DEG NW
    Thickness 9.14M
    Length 1609.3M
    Width 0.91M

Controls for ore emplacement

  • Fractures

Economic information about the deposit and operations

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

Mining district

District name Black Warrior District

Land status

Ownership category National Forest
Area name Boise National Forest
Ownership category National Forest
Area name Boise National Forest

Comments on the production information

  • Values Of Au And Ag Produced Reported To Be $40,000.; Value Au In Item 2 $ 15,021

Comments on the reserve resource information

  • About 15 Tons In Cyanide Tanks And 15 Tons From Amalgamation Process Remain

Workings at the site

  • Type of workings Surface/Underground
    Length 1219.2M

Comments on the workings information

  • Many Trenches, 1 Is 110 Ft Long, 50 Ft Wide, 25 Ft Deep

Comments on development

  • 10 - Stamp Mill, 1100 Ft Aerial Tram. ; Econ.Com: Vein And Dump Samples Indicate Vein Material Is Submarginal And Could Not Be Mined Economically ( 1970 )

Reference information

Bibliographic references

  • Deposit

    Ballard, S. M., 1928, Geology And Ore Deposits Of The Rocky Bar Quadrangle: Idaho Bureau Of Mines & Geol. Pam. 26, P. 38

  • Deposit

    Kiilsgaard, T. H., And Others, 1970, Mineral Resources Of The Sawtooth Primitive Area, Idaho: USGS Bulletin 1319-D, 174p.

  • Deposit

    1928 Geolmap Idaho Bureau Of Mines & Geol. Pam. 26

  • Deposit

    Kiilsgaard, T. H., And Others, 1970, Mineral Resources Of The Sawtooth Primitive Area, Idaho: USGS Bulletin 1319-D, 174p.

  • Deposit

    Hailey Quad, Mines And Prospects Map Series, 1981, V.E. Mitchell, Et. Al.

  • Production

    Kiilsgaard, T. H., And Others, 1970, Mineral Resources Of The Sawtooth Primitive Area, Idaho: USGS Bulletin 1319-D, 174p.

General comments

Subject category Comment text
Deposit A 2nd Vein E Of Overlook Mill Trends Ne And Dips 70 Deg Se

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1975 Steigner, William D. U.S. Geological Survey
Updater 01-AUG-1976 Everett, Sandra E. U.S. Geological Survey
Reporter 25-NOV-1983 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.

Maps centered on this site