Boston Colby Property

Occurrence in Mineral county in Montana, United States with commodities Copper, Silver, Gold
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. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  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 10010252
MRDS ID D003838
Record type Site
Current site name Boston Colby Property

Geographic coordinates

Geographic coordinates: -115.5224, 47.41265 (WGS84)
Elevation 1097
Relative position 0.5 MI W OF SALTESE

Site location context

Political divisions (FIPS codes)

Mineral(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Saltese(quadrangle 1:24,000 scale)

Wallace(quadrangle 1:100,000 scale)

Wallace(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Clark Fork(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Lolo 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 Montana Mineral

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 019N 031W 15 Montana

Comments on the location information

  • NEAR THE CHICAGO, MILWAUKEE, ST. PAUL AND PACIFIC R.R. TRACK.

Commodities

Commodity Importance
Copper Primary
Silver Secondary
Gold Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Silver Ore
Limonite Gangue
Pyrite Gangue
Quartz Gangue
Siderite Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Wallace Formation
    Rock description Wallace Formation
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -115.5224, 47.41265

Economic information

Geologic structures

Type of structure Regional
Structure description A General Structural Grain Trends Nw And Is Made Of A System Of Subparallel Faults And Folds
Type of structure Local
Structure description Two Bedding Plane Faults, One Of Which Contains The Ore Bearing Vein, As Well As A Strike Fault

Ore body information

  • Width 3.05M

Comments on the geologic information

  • COUNTRY ROCK STRIKES NW AND DIPS 50 DEG SW.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Denemora District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Boston Colby Mining Co.

Workings at the site

  • Type of workings Underground
    Length 656.84M

Comments on the workings information

  • 2 SHAFTS, 80 AND 25 FT RESPECTIVELY; 400 AND 800 FT ADITS; 600 FT OF DRIFTS; 200 FT OF CROSS-CUTS; 30 FEET OF RAISES; ONE 20 FT. WINZE.

Comments on development

  • 9 PATENTED CLAIMS. MINE WAS OPERATING AT LEAST UNTIL 1934 .

Reference information

Bibliographic references

  • Deposit

    CALKINS, F. C., AND JONES, E. L. JR., 1914 , ECONOMIC GEOLOGY OF THE REGION AROUND MULLAN, IDAHO AND, SALTESE, MONTANA: US GEOLOGICAL SURVEY BULL. 540 , P. 198-199 .

  • Deposit

    WALLACE, R. E., AND HOSTERMAN, J. W., 1956 , RECONNAISANCE GEOLGOY OF WESTERN MINERAL COUNTY, MONTANA: US GEOLOGICAL SURVEY BULL. 1027-M, PL. 48 .

  • Deposit

    GILBERT, F. C., 1935 , DIRECTORY OF MONTANA MINING PROPERTIES: MONTANA BUREAU OF MINES AND GEOLOGY MEM. 15 , P. 60 .

General comments

Subject category Comment text
Deposit SULFIDES ARE SPARSELY DISTRIBUTED WITHIN VEIN.
Deposit 1914 PUBLICATION STATES THAT JUDGING FROM THE EXISTENCE OF POROUS COPPER-STAINED LIMONITE, THE DEPOSIT MAY HAVE A ZONE OF ENRICHMENT AT DEPTH. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1979 Rojstaczer, Stuart A. U.S. Geological Survey

Beyond USGS

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