Lilly-Orphan Boy Group

Past Producer in Powell county in Montana, United States with commodities Silver, Lead, Gold, Zinc, Copper
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. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  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 10105768
MRDS ID W015564
Record type Site
Current site name Lilly-Orphan Boy Group
Alternate or previous names Lily-Orphan Boy Group, Lily Mine, Orphan Boy Mine, Twin City Mine
Related records 10221619

Geographic coordinates

Geographic coordinates: -112.34172, 46.44268 (WGS84)
Elevation 2085
Relative position APPROXIMATELY 13 MILES NORTHWEST OF BASIN MONTANA

Site location context

Political divisions (FIPS codes)

Powell(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Three Brothers(quadrangle 1:24,000 scale)

Butte North(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Clark Fork(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Helena-Lewis and Clark 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 Powell

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 008N 006W 15 Montana

Comments on the location information

  • 1.1 KM S OF NEWMANS CAMP. ; INFO FROM LAND.ST :(1954)

Commodities

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

Materials information

Materials Type of material
Galena Ore
Gold Ore
Sphalerite Ore
Pyrite Gangue
Quartz Gangue
Tourmaline Gangue

Alteration

  • (Local) Quartz Monzonite Altered By Sericitization And Argillization, Hydrothermal

Analytical data

Result TWIN CITY MINE $3.60/TON AU, AG, CU, PB, PRE 1900.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Butte Quartz Monzonite (Boulder Bathoth)
    Rock description Butte Quartz Monzonite (Boulder Bathoth)
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) Elkhorn Mountains Volcanics

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith

Ore body information

  • Width 1.98M

Economic information about the deposit and operations

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

Mining district

District name Elliston District

Land status

Ownership category National Forest

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 54.86M

Comments on the workings information

  • WORKINGS DESCRIBED AS HAVING MANY SURFACE PITS AND CUTS (NO DIMENSIONS GIVEN) AND A 180 FOOT VERTICAL SHAFT WITH THREE LEVELS. TWIN CITY MINE IS A SHAFT 85 FT DEEP AND A 21 FT CROSSCUT AT THE BOTTOM, ALL UNDERWATER.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit THE WORKINGS ARE SAID TO EXPLORE AN EAST TRENDING HIGH-ANGLE VEIN RANGING IN WIDTH FROM 4.0 TO 6.5 FEET

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1977 Mckenzie, Craig L.; R. B. Berg U.S. Geological Survey
Updater 01-AUG-1981 Wise, Kristine K. (Elliott, James E.) U.S. Geological Survey

Beyond USGS

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

External references