Democrat Mine

Past Producer in Blaine county in Idaho, United States with commodities Silver, Lead, Gold, Zinc

Geologic information

Identification information

Deposit ID 10070676
MRDS ID W013707
Record type Site
Current site name Democrat Mine
Alternate or previous names Idaho-Democrat Mine
Related records 10143816

Geographic coordinates

Geographic coordinates: -114.4042, 43.5256 (WGS84)
Elevation 1829
Relative position 4 1/2 MI. WEST OF HAILEY
(click for info)

Geographic areas

Country State County
United States Idaho Blaine

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 002N 017E 11 Idaho

Comments on the location information

  • NEAR HEAD OF DEMOCRAT CREEK

Commodities

Commodity Importance
Silver Primary
Lead Primary
Gold Secondary
Zinc Tertiary

Materials information

Materials Type of material
Galena Ore
Sphalerite Ore
Tetrahedrite Ore
Pyrite Gangue
Quartz Gangue
Siderite Gangue

Alteration

  • (Local) Oxidation, Sericitization

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Early Cretaceous
    Stratigraphic age (youngest) Pennsylvanian
  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Idaho Batholith-Granodiorite, Quartz Monzonite
    Rock description Idaho Batholith-Granodiorite, Quartz Monzonite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Wood River Formation-Limestone
    Rock description Wood River Formation-Limestone

Nearby scientific data

(1) -114.4042, 43.5256

Ore body information

  • Strike NW
    Dip 60 DEG S.
    Width 2.44M

Controls for ore emplacement

  • Shear Zone, Faultslip

Economic information

Economic information about the deposit and operations

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

Mining district

District name Mineral Hill District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Bartlett, A. W.

Production statistics

  • Year 1901
    Period 1883-1901
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^Au, 126 Oz Ag/Ton, Avg. 61% Pb
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Silver Silver 3558g/mt
    Major Ore Lead Lead 61wt-pct

Comments on the production information

  • PRINCIPAL ACTIVITY BEFORE 1890, WHEN NEARLY 2/3 OF TOTAL PB-AG ORE WAS PRODUCED, GROSS VALUE ABOUT $300,000. 7 CARLOADS OF ORE PRODUCED IN 1906 RAN 60% PB AND 112 OZ/TON AG.

Comments on development

  • 11 PATENTED CLAIMS

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS W013707
Idaho Geological Survey Idaho Mines and Prospects IMP HA0310 http://www.idahogeology.org/

Bibliographic references

  • Deposit

    UMPLEBY, J. B., AND OTHERS, 1930, GEOLOGY AND ORE DEPOSITS OF THE WOOD RIVER REGION, IDAHO, WITH A DESCRIPTION OF THE MINNIE MOORE AND NEAR-BY MINES: USGS BULL. 814, P. 1-245.

  • Deposit

    BELL, R.N., 1907, EIGHTH ANNUAL MINING INDUSTRY OF IDAHO FOR 1906

  • Deposit

    1930 GEOLMAP J. B. UMPLEBY AND OTHERS, BULL. 814

  • Production

    ITEMS 8-14, UMPLEBY, J. B., 1930, USGS BULL. 814; ITEMS 1, 17, BELL, R. N., 1907, EIGHT ANNUAL MINING REPORT.

Reporter information

Type Date Name Affiliation Comment
Reporter 1976-07-01 Everett, Sandra E. (Miller, Pat) U.S. Geological Survey