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Monitor Mine

Past Producer in Shoshone county in Idaho, United States with commodities Zinc, Lead, Silver, Copper, Gold
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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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Ownership information
  19. Production statistics
  20. Reserves and resources
  21. Workings at the site
  22. Links to other databases
  23. Bibliographic references
  24. General comments
  25. Reporter information

Geologic information

Identification information

Deposit ID 10106000
MRDS ID W026680
Record type Site
Current site name Monitor Mine
Alternate or previous names Grey Rock Lease, Interstate-Callahan Mine, Callahan Mine, Interstate Mine, Silver State Prospect, Montana-Idaho

Geographic coordinates

Geographic coordinates: -115.60241, 47.34377 (WGS84)
Elevation 1388
Relative position 7 MI N OF WALLACE ON WEST SIDE NINEMILE CR RD IN SUNSET PEAK AREA

Site location context

Political divisions (FIPS codes)

Shoshone(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Adair(quadrangle 1:24,000 scale)

Wallace(quadrangle 1:100,000 scale)

Wallace(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

St. Joe(hydrologic unit)

Spokane(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Idaho Panhandle National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Idaho Shoshone

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 049N 004E;005E 36;29,30,31,32 Idaho

Comments on the location information

  • ABOUT 2.5 MI SE FROM BALD MTN PROSPECT. LIES ACROSS A HIGH RIDGE BETWEEN THE E FK OF NINEMILE CR AND MISSOULA GULCH.

Commodities

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

Comments on the commodity information

  • IN THE CARLISLE-HERCULES MINERAL BELT

Materials information

Materials Type of material
Sphalerite Ore
Galena Ore
Chalcopyrite Ore
Tetrahedrite Ore
Malachite Ore
Calcite Gangue
Quartz Gangue
Siderite Gangue
Pyrite Gangue
Chlorite Gangue
Pyrrhotite Gangue
Grunerite Gangue
Magnetite Gangue
Clinozoisite Gangue
Epidote Gangue
Garnet Gangue
Hematite Gangue
Ankerite Gangue

Alteration

  • (Local) Sericite-pyrite envelopes extend well outward from veins into host Prichard Formation argilite. A calcite-chlorite envelope extends less far from the vein, and orthoclase-epidote-garnet occur very close to the vein. The monzonite dikes are progressively altered, as mineralization is approached, from a zone where horblende is altered to chlorite and epidote, feldspar to clinozoisite, sphene to leucoxene and epidote, magnetite to epidote, and pyrite to hematite, to a zone where sericite begins to replace all minerals associated with calcite, to a zone where the rock almost entirely consists of sericite and calcite.

Analytical data

Result SOME SAMPLES OF 70 % SPHALERITE, 15 % GALENA, 5 % CHALCOPYRITE, 3 % CALCITE, 3 % QUARTZ, 1 % OTHER ORE AND GANGUE MINERALS

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Argillite
    Rock unit name Lower Prichard Formation
    Rock description Lower Prichard Formation
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Monzonite
    Rock unit name Gem Stock
    Rock description Gem Stock
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -115.60241, 47.34377
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Osburn Fault (WNW) to south of deposit.
Type of structure Local
Structure description Burke-Trout Creek Anticline (NS) - deposit occurs in the south end of the east limb.
Type of structure Local
Structure description Puritan Fault (N10W 70NE) bounds the deposit to the east.
Type of structure Local
Structure description Carlisle Fault (N20W 75SW) bounds the deposit to the west.
Type of structure Local
Structure description Monzonite dike strikes EW, dips 70N, with parallel plane of weakness.

Ore body information

  • Name Interstate Vein
    General form PINCH AND SWELL
    Strike N 40 DEG W
    Dip 65 DEG S
    Thickness 427M
    Length 518M
    Width 12.19M
  • Name Callahan West
    General form PINCH AND SWELL
    Length 122
  • Name Callahan East
    General form PINCH AND SWELL
    Strike 85SW
    Dip 85SW
    Thickness 640
    Length 76
  • Name South Vein
    General form PINCH AND SWELL
    Strike 85SW
    Dip 85SW
    Thickness 91
    Length 61
  • Name Monitor
    General form PINCH AND SWELL
    Strike 65SW
    Dip 65SW
    Thickness 91
    Length 110
    Width 3.7
  • Name Silver State
    General form PINCH AND SWELL
    Strike 65-70NE
    Dip 65-70NE
    Width 1.5

Comments on the ore body information

  • The Monitor orebody is an up-dip extension of the Callahan East Vein. This vein pinches to less than 0.3 meters wide, but where mined is 1.2 to 3.7 meters wide. The lower portion of the Callahan East vein in pipelike with dimensions of 11 by 9 meters on the 11th level (966 meterts elevation) where the vein contained much pyrite and little zinc.
  • Orebodies show some zoning with sphalerite and galena in their outer portions and just sphalerite in their cores.

Controls for ore emplacement

  • Change in dip of Prichard Formation from 70 degrees to 25 to 30 degrees, then back to 70 degrees again; Changes in strike of fractures; and position and attitude of monzonite dikes (veins in parallel zones of weakness).

Comments on the geologic information

  • The Gem hornblende monzonite locally occurs as latite porphyry dikes.

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Large
Significant Yes
Discovery year 1885
Discoverer JIM CALLAHAN
Mining method Filled Stopes - Horiz Cut and Fill W/Waste Rock
Year of first production 1892
Year of last production 1977
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Flotation
Production years 1892, 1906-1910, 1912-1924, 1936-1977

Mining district

District name Beaver

Land status

Ownership category Private
Ownership category National Forest
Area name St. Joe National Forest

Ownership information

  • Type Owner-Operator
    Owner Callahan Brothers
    Interest 100
    First year 1885
    Last year 1910
  • Type Owner-Operator
    Owner Callahan Mining Co.
    Interest 100
    Home office Wallace, Idaho
    First year 1910
    Last year 1912
  • Type Owner-Operator
    Owner Inter-State Mining and Milling Co.
    Interest 100
    First year 1906
    Last year 1912
  • Type Owner-Operator
    Owner Consolidated Interstate-Callahan Mining Co.
    Interest 100
    Home office New York
    First year 1912
    Last year 1921
  • Type Owner-Operator
    Owner Callahan Zinc-Lead Co.
    Interest 100
    Home office New York
    First year 1921
    Last year 1945
  • Type Lessee/Operator
    Owner Interstate Lease
    Interest 100
    First year 1939
    Last year 1941
  • Type Lessee/Operator
    Owner Zanetti Bros. (Daylight Lease)
    Interest 100
    First year 1940
    Last year 1954
  • Type Owner-Operator
    Owner Monitor Mining Co.
    Interest 100
    Home office Wallace, Idaho
    First year 1945
    Last year 1947
  • Type Owner-Operator
    Owner Day Mines, Inc.
    Interest 100
    Home office Wallace, Idaho
    First year 1947
    Last year 1981
  • Type Lessee/Operator
    Owner Kennedy-Zanetti Lease
    Interest 100
    First year 1955
    Last year 1971
  • Type Owner
    Owner Hecla Mining Co.
    Interest 100
    Home office Coeur d'Alene, Idaho
    First year 1981

Production statistics

  • Year 1977
    Period 1906-1977
    Material Ore
    Ore mined 1188761mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major in concentrates Zinc Zinc 113040mt 16wt-pct

Comments on the production information

  • Production compiled from company records, Day Mines annual reports, and other sources. May include a small amount of production from Amazon-Manhattan mine. May not include all lease production. Does not include reprocessed tailings/

Reserves and resources

  • Type In-situ
    Estimate year 1974
    Reserves 35600mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver 46 g/mt Silver Major 1974
    Lead 3.07 wt-pct Lead Major 1974
    Zinc 10.57 wt-pct Zinc Major 1974

Comments on the reserve resource information

  • From Day Mines, Inc. annual report for 1973. These reserves were mined out from 1974 to 1977.

Workings at the site

  • Type of workings Underground
    Name of workings Total Workings
    Length 33476.18M
    Overall depth 91.44M

Comments on the workings information

  • LENGTH WORKINGS A 1961 FIGURE.

Comments on development

  • 187 PATENTED CLAIMS, 10 UNPATENTED AND 2 UNPATENTED MILLSITES

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit INTERSTATE VEIN SINTERSTATE VEIN SYSTEM STRIKES W TO N 40 DEG W, DIPS 75 DEG N. CALLAHAN EAST STRIKES N 60 DEG W, DIPS 85 DEG S, IS 250 FT LONG. THE SOUTH ORE SHOOT STRIKES N 70 DEG W, DIPS 85 DEG S, IS 200 FT LONG AND AT 4960 FT ELEVATION. DEPTHS TO TOP; BOTTOM ARE EXPRESSED IN ELEVATION

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1974 Miller, Pat J. U.S. Geological Survey
Reporter 01-JUN-1980 Chesson, Sharon A. U.S. Geological Survey
Reporter 15-OCT-1990 Unknown U.S. Bureau of Mines
Reporter 14-MAR-1995 Kauffman, John D. U.S. Bureau of Mines
Updater 04-MAR-2005 Long, Keith R. U.S. Geological Survey

Beyond USGS

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

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