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Richmond Group

Producer in Madison county in Montana, United States with commodities Gold, Silver, Copper, 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. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10019745
MRDS ID DC11347
Record type Site
Current site name Richmond Group
Alternate or previous names Eagle, Hummingbird, Adits No. 4-9.

Geographic coordinates

Geographic coordinates: -112.19587, 45.58184 (WGS84)
Elevation 2073
Relative position 7 MILES NORTHEAST OF TWIN BRIDGES

Site location context

Political divisions (FIPS codes)

Madison(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Old Baldy Mountain(quadrangle 1:24,000 scale)

Butte South(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Jefferson(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management MT)

Bureau of Land Management MT BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Montana Madison

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 003S 005W 22,23 NE OF NE (22) Montana

Commodities

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

Materials information

Materials Type of material
Quartz Gangue

Alteration

  • (Local) Oxidation, Gouge, Brecciation

Analytical data

Result JOHNS LISTS 24 SAMPLE ASSAYS FROM 5 MINES IN THE GROUP. (1961, P. 47-50)

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Meta-Basalt
    Rock unit name Meta Basalt Sill;Andesite Sill
    Rock description Meta Basalt Sill;Andesite Sill
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cambrian
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Flathead And Wolsey Formations.;Pony Gneiss
    Rock description Flathead And Wolsey Formations.;Pony Gneiss

Nearby scientific data

(1) -112.19587, 45.58184
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Ne To Nw Trending Normal And Reverse Faults.

Ore body information

  • Strike N 30 E
    Dip 30 N
    Width 1.22M

Controls for ore emplacement

  • Bedding Plane

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1900
Discoverer Richmond Bros.

Mining district

District name Tidal Wave District

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner J. Richmond, A. Jacobs, B. Payne,
    First year 1942

Workings at the site

  • Type of workings Underground
    Length 198.12M

Comments on the workings information

  • 6 ADITS, ADIT AND SHAFT IN HUMMINGBIRD MINE.

Reference information

Bibliographic references

  • Deposit

    MBMG BULL 24, P. 29-32

General comments

Subject category Comment text
Deposit VEINS TREND FROM NORTH TO N70E. THE EAGLE (N30E, 30N) AND HUMMINGBIRD (N60E, 20N) WERE MOST PRODUCTIVE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1980 Unknown U.S. Geological Survey
Updater 01-MAY-1987 Loen, Jeffrey S. (Pearson, Robert C.) U.S. Geological Survey

Beyond USGS

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

Maps centered on this site