Nancy Hanks Mine

Past Producer in Granite county in Montana, United States with commodities Gold, Silver, Copper, Lead, Barium-Barite, Antimony
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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10071334
MRDS ID W014667
Record type Site
Current site name Nancy Hanks Mine
Alternate or previous names Minnie Palmer
Related records 10245594

Geographic coordinates

Geographic coordinates: -113.34621, 46.82739 (WGS84)
Elevation 1844
Relative position ABOUT 0.5 KM NORTHWEST OF GARNET

Site location context

Political divisions (FIPS codes)

Granite(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Elevation Mountain(quadrangle 1:24,000 scale)

Missoula East(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Blackfoot(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Montana Granite

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 012N 014W 03 Montana

Comments on the location information

  • UTM LOCATION OF MINNIE PALMER STOPE
  • Political location in record is Granite county. The MRDS location-problem GIS test indicated the lat/long fell in adjacent Missoula county. However, topo sheet, Google Earth, and the County100 coverage plot it 740 meters inside Granite county. No change is necessary.

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Secondary
Lead Secondary
Barium-Barite Critical Tertiary
Antimony Critical Tertiary

Comments on the commodity information

  • GOLD DISSEMINATED IN PYRITE AND LIMONITE

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Tetrahedrite Ore
Barite Gangue
Limonite Gangue
Pyrite Gangue
Quartz Gangue

Analytical data

Result AVERAGE 3-4% CU, 10OZ/TON AG, 4OZ/TON AU

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Garnet Stock
    Rock description Garnet Stock
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Hasmark Formation
    Rock description Hasmark Formationt
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -113.34621, 46.82739

Economic information

Geologic structures

Type of structure Regional
Structure description Bearmouth Overthrust, Deep Creek Anticline, Mount Baldy Synclinorium
Type of structure Local
Structure description Stock Has Intruded Northern Limb Of Deep Creek Anticline Which Trends About N 70 E And Plunges About 30 Deg. W. Post Ore Movement In Plane Of Vein Has Severely Crushed Ore In Many Places. Veins Have Been Cut By Transverse And Strike Faults, But Few Have Displacements Greater Than 1 M.

Ore body information

  • General form TABULAR
    Strike N 85 E
    Dip 30 N
    Length 2000M

Controls for ore emplacement

  • Garnet Stock, Deep Creek Anticline, Hasmark Formation

Comments on the geologic information

  • VEINS ARE WITHIN 50 M OF EDGE OF GRANODIORITE STOCK AND ARE APPROXIMATELY PARALLEL WITH THE GRANODIORITE - LIMESTONE CONTACT. LIMESTONE BELONGS TO HASMARK FM.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1874
Discoverer S. I. Ritchey
Year of first production 1896

Mining district

District name Garnet (First Chance) District

Ownership information

  • Type Operator
    Owner American Mining Co.
  • Type Owner
    Owner American Mining Co.
    Home office 700 Securities Bldg., Seattle, Wa. 98101

Comments on the production information

  • 1916-1942 PRODUCTION ESTIMATED FROM DISTRICT PRODUCTION , MOST PRODUCTION CAME FROM STOPE W. OF OLD SHAFT.

Comments on the reserve resource information

  • ANY REMAINING ORE LIKELY TO BE LOW GRADE AND AT A DEPTH OF 100 TO 200 M

Workings at the site

  • Type of workings Underground
    Length 1500M
    Overall depth 150M

Comments on the workings information

  • 2 SHAFTS, NANCY HANKS "OLD SHAFT" AND THE MINNIE PALMER SHAFT.

Reference information

Bibliographic references

  • Deposit

    USGS BULL 660, P. 182-184.

  • Deposit

    MBMG MEM NO 31 P. 32.

  • Deposit

    MBMG MEM NO 39, P. 28.

  • Deposit

    MBMG BULL 82, P. 8.

  • Production

    USGS BULL. 660-F, MBMG MEM. 39

General comments

Subject category Comment text
Deposit "RED ORE" SHOOT PRODUCED AT LEAST 50% OF THE TOTAL PRODUCTION. A TABULAR BODY 165 FT LONG, AND FROM 1-3 FT THICK, PINCHING OUT SLIGHTLY W. IT IS W OF OLD SHAFT. INDIVIDUAL VEINS IN THIS ZONE, WHICH IS ABOUT 2000 M LONG, RARELY PERSIST IN LENGTH OR DEPTH FOR MORE THAN 50 M.
Deposit THE NANCY HANKS VEIN SYSTEM IS THE NORTHERNMOST OF THREE VEIN SYSTEMS IN THE FIRST CHANCE DISTRICT. ON THIS COMPOSITE VEIN ARE THE SHAMROCK, DEWEY, NANCY HANKS, AND CASCADE MINES, NAMED IN ORDER FROM EAST TO WEST. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1976 Krohn, Douglas H. U.S. Geological Survey
Updater 01-APR-1981 Wise, Kristine K. (Elliott, James E.) U.S. Geological Survey
Editor 06-AUG-2008 Schruben, Paul U.S. Geological Survey Fixed lat/long - county disagreement.

Beyond USGS

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

External references