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Potratz Prospect

Past Producer in Lewis and Clark county in Montana, United States with commodities Gold, Silver, Copper, Tungsten, Molybdenum
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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. 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 10019005
MRDS ID DC08158
Record type Site
Current site name Potratz Prospect

Geographic coordinates

Geographic coordinates: -112.48423, 46.71101 (WGS84)
Location accuracy 250(meters)
Relative position IN MEXICAN GULCH 9.5 ML FROM AVON BY OPHIR GULCH RD.

Site location context

Political divisions (FIPS codes)

Lewis and Clark(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Esmeralda Hill(quadrangle 1:24,000 scale)

Elliston(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 Lewis and Clark

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 011N 007W 16 NW Montana

Comments on the location information

  • COUNTY NAME CHANGED FROM POWELL TO LEWIS AND CLARK 11/91 BY D.F. SPOKANE MIO. SECTION 16 IS IN LEWIS AND CLARK COUNTY. ALL REFERENCES LOCATE PROPERTY IN SECTION 16 OF T 11 N, R 7 W. USBM - RI-6334 AND MBMG BULLETIN 98 BOTH HAVE SECTION 16 AS LOCATION BUT SAY POWELL COUNTY. ; INFO FROM LAND.ST :(1959)

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Primary
Tungsten Critical Tertiary
Molybdenum Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Scheelite Ore
Silver Ore
Magnetite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Stratigraphic age (youngest) Late Permian

Nearby scientific data

(1) -112.48423, 46.71101
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith

Ore body information

  • Strike E
    Dip 60-70S
    Length 30.48M

Economic information about the deposit and operations

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

Mining district

District name Ophir District

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Guy Potratz
    Home office Avon, Mt.

Comments on the production information

  • ITEM 1: ONLY $1000.

Workings at the site

  • Type of workings Underground
    Length 267.31M

Comments on the workings information

  • ADIT, SHAFT (CAVED), 12 AND 38 FT SHAFTS, 2 20FT INCLINES

Reference information

Bibliographic references

  • Deposit

    USBM RI 6334, P. 6, 50, 51

  • Production

    WALKER, 1963, USBM REP. INVES. 6334

General comments

Subject category Comment text
Deposit HIGH GARNET-TACTITE ZONE OCCURS ALONG A LIMESTONE-DIORITE CONTACT. SCATTERED SMALL CRYSTALS OF SCHEELITE AND POWLLITE OCCUR ALONG CONTACT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-DEC-1980 Wise, Kristine K. 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