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Gold Hill Mine

Producer in Boise county in Idaho, United States with commodities Gold, Silver, Lead, Zinc
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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. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  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 10069872
MRDS ID W007615
Record type Site
Current site name Gold Hill Mine
Alternate or previous names Consolidated Gold Hill and Iowa Groups Mine
Related records 10289921

Geographic coordinates

Geographic coordinates: -115.98013, 43.96155 (WGS84)
Elevation 1463
Relative position 2 1/2 MI NW OF PLACERVILLE

Site location context

Political divisions (FIPS codes)

Boise(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Placerville(quadrangle 1:24,000 scale)

Idaho City(quadrangle 1:100,000 scale)

Hailey(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Boise-Mores(hydrologic unit)

Middle Snake-Boise(hydrologic accounting unit)

Middle Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Idaho Boise

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 007N 004E 09 Idaho

Comments on the location information

  • CLAIMS CENTRALLY GROUPED ABOUT QUARTZBURG TOWARD HEAD OF GRANITE CREEK IN NW PART OF BASIN

Commodities

Commodity Importance
Gold Primary
Silver Tertiary
Lead Tertiary
Zinc Critical Tertiary

Comments on the commodity information

  • A 1923 SHIPMENT SAMPLE CONTAINED UP TO 5.0 OZ. EACH AU AND AG/TON.

Materials information

Materials Type of material
Bismuth Ore
Bismuthinite Ore
Galena Ore
Gold Ore
Silver Ore
Sphalerite Ore
Stibnite Ore
Tetradymite Ore
Tetrahedrite Ore
Calcite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Oxidation, Silicified, Sericitization, Bleaching

Analytical data

Result A 1924 HIGH - GRADE CONCENTRATE ASSAYED 79.02 OZ/TON AU, 112.7 OZ/TON AG, 5.03% BI., 6.6% PB, 0.21% CU. ANDERSON (1947) REPORTS MUCH OF THE ORE FROM THE LOWER LEVELS ASSAYED .3-.5 OZ AG PER TON, THOUGH LOCALLY SMALL QUANTITIES OF ORE WERE TWICE AS RICH.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Idaho Batholith-Diorite, Granite;Dikes-Rhyolite Porphyry, Dacite, Quartz Monzonite Porphyry, Lamprophyre
    Rock description Idaho Batholith-Diorite, Granite;Dikes-Rhyolite Porphyry, Dacite, Quartz Monzonite Porphyry, Lamprophyre
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
  • Host or associated Associated
    Rock type Plutonic Rock > Porphyry > Lamprophyre
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -115.98013, 43.96155
ListMap

Economic information

Ore body information

  • General form IRREGULAR, LENSES, SEAMS, BUNCHES
    Strike S 40 DEG W
    Dip 70 DEG SE
    Width 12.19M

Controls for ore emplacement

  • Fissure Zone, Shear Zone, Fractures, Faults, Dike Intersections

Comments on the geologic information

  • SHEAR ZONE TREND N 52 DEG E, DIP 80 DEG SE

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1862
Year of first production 1864

Mining district

District name Boise Basin

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Boise Ridge Mining And Milling
    First year 1975
  • Type Owner
    Owner Miller, J. L.

Comments on the production information

  • TOTAL PRODUCTION OF $7,500,000. , UP TO 1929. PRODUCTION UP TO 1938 WOULD PROBABLY BE WELL ABOVE $8000000. IN 1923, AU WAS 860-881 FINE AND AG WAS 110-116 FINE.

Workings at the site

  • Type of workings Underground
    Length 12192M
    Overall depth 385.57M
    Overall length 609.6M

Comments on the workings information

  • GOLD HILL VEIN STRIKES N 60 - 70 DEG E. IN PLACES

Comments on development

  • 18 PATENTED AND 28 UNPATENTED CLAIMS; ORE TREATED IN A 100-TON ELECTRICALLY DRIVEN FINE-GRINDING AMALGAMATION MILL UNTIL MINE SHUT DOWN AND PLANT WAS DISMANTLED IN 1938 ; ECON.COM: 1937- TOTAL MILLING COST $0.62/TON, OVERALL OPERATING COST $4.32/TON, STOPING $3/FT., EXPLORATION $11.36/FT.

Reference information

Bibliographic references

  • Deposit

    BALLARD, S. M., 1924, GEOLOGY AND GOLD RESOURCES OF BOISE BASIN, BOISE COUNTY, IDAHO: ID. BUREAU OF MINES AND GEOL., BULL. NO. 9, 103 P.

  • Deposit

    ANDERSON, A.L., 1947, GEOLOGY AND ORE DEPOSITS OF BOISE BASIN, IDAHO: USGS BULL. 944-C, P. 257-265.

  • Deposit

    ROSS, C.P., 1934, SOME LODE DEPOSITS IN THE NORTHWESTERN PART OF THE BOISE BASIN, IDAHO: USGS BULL. 846-D, P. 239-277.

  • Deposit

    JONES, E.L. JR., 1916, LODE MINING IN THE GRIMES PASS PORPHYRY BELT, BOISE BASIN, IDAHO: USGS BULL. 640, P. 83-111.

  • Deposit

    5) USBM, 1975, ACTIVITY OF IDAHO MINING PROPERTIES, 1974: USBM, BOISE, IDAHO, 61P.

  • Deposit

    6) IDAHO DEPT. OF LABOR AND INDUSTRIAL SERVICES, JULY 1974-JUNE 1975, FIRST ANNUAL REPORT ADDENDUM.

  • Deposit

    5) HUTTL, J.B., 1937, BOISE BASIN GOLD: ENG. MINING JOUR., V. 138, NO. 6, P. 297-298.

  • Deposit

    1916 GEOLMAP JONES, E.L.JR., BULL. 640

  • Deposit

    1924 GEOLMAP IDAHO BUREAU OF MINES, BULL. 9

  • Deposit

    1934 GEOLMAP ROSS, C.P., BULL. 846-D.

  • Deposit

    1947 GEOLMAP ANDERSON, A.L., BULL. 944-C

  • Deposit

    1975 COMPILE IDA. DEPT. OF LABOR AND INDUSTRIAL SERVICES, FIRST ANNUAL REPORT ADDENDUM

  • Deposit

    1975 COMPILE USBM, ACTIVITY OF IDAHO MINING PROPERTIES

  • Production

    BALLARD, S. M., 1924, ID. BUREAU OF MINES AND GEOL., BULL. NO. 9 ; ANDERSON, A.L., 1947, USGS BULL. 944-C.

General comments

Subject category Comment text
Deposit Discovery Year: EARLY 1860'S
Deposit . ORE ON 600 LEVEL IS 300 FT. LONG, 30 FT. WIDE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1975 Murphy, Lyn S. U.S. Geological Survey
Updater 01-AUG-1976 Everett, Sandra E. U.S. Geological Survey

Beyond USGS

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

Current status (per MSHA)

StatusAbandoned since 08/10/2015
MSHA mine ID1002209
Mine name (MSHA)Gold Hill
Current operatorIdaho State Gold Company
Current controller (parent)Sima Muroff
Mine typeSurface (Metal / non-metal)

Inferred by coordinate + name similarity (658 m, 1.00 match). Confirm against MSHA if precision matters — non-USGS-curated cross-references may occasionally point at a neighbouring mine.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

External references

Maps centered on this site