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Cliff Mine

Past Producer in Albany county in Wyoming, United States with commodities Gold, Silver, Platinum, Copper
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Geologic information

Identification information

Deposit ID 10098383
MRDS ID M045453
MAS/MILS ID 560010117
Record type Site
Current site name Cliff Mine
Included sites Centennial Ridge District

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -106.185, 41.276 (WGS84)
Elevation 2743
Location accuracy 10(meters)
Relative position 2.5 MI SOUTHWEST OF CENTENNIAL. Mine on east side of Middle Fork Little Laramie River, extreme south edge of SW4 sec. 8.
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Geographic areas

Country State County
United States Wyoming Albany

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 015N 078W 8 S2 OF SW4 Wyoming

Comments on the location information

  • IN MEDICINE BOW NATIONAL FOREST

Commodities

Commodity Importance
Gold Primary
Silver Primary
Platinum Tertiary
Copper Tertiary

Comments on the commodity information

  • PLATINUM REPORTED PRESENT BUT NOT VERIFIED; IT WOULD BE A REASONABLE OCCURRENCE BASED ON PLATINUM BEING PRESENT IN OTHER MINES IN THE DISTRICT

Materials information

Materials Type of material
Chalcopyrite Ore
Chrysocolla Ore
Gold Ore
Malachite Ore
Pyrite Ore

Analytical data

Result REPORTEDLY 0.58 OZ/TON AU OVER 15 FT WIDTH

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

Main Entrance (1) -106.185, 41.276
ListMap

Geologic structures

Type of structure Regional
Structure description Mullen Creek-Nash Fork Shear Zone

Ore body information

  • General form VEINS
    Width 0.08M

Controls for ore emplacement

  • Fracture Pattern

Economic information

Economic information about the deposit and operations

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

Mining district

District name Centennial Ridge District

Land status

Ownership category National Forest

Comments on the production information

  • NO PRODUCTION FIGURES GIVEN; SMALL PRODUCTION PRESUMED

Workings at the site

  • Type of workings Underground
    Length 335.28M

Comments on the workings information

  • TUNNEL FOLLOWING SCHISTOSITY AND CROSSCUT

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M045453
U.S. Bureau of Mines Minerals Availability System MAS 560010117 = newMRDS 10205165, merged and deleted.

Bibliographic references

  • Deposit

    MCCALLUM, M.E., 1968, THE CENTENNIAL RIDGE GOLD-PLATINUM DISTRICT, ALBANY COUNTY, WYOMING: GEOLOGICAL SURVEY OF WYOMING PRELIMINARY REPORT 7, P. 9, 11.

  • Deposit

    HESS, F.L., 1926, PLATINUM NEAR CENTENNIAL, WYOMING: U.S. GEOLOGICAL SURVEY BULLETIN 780-C, P. 132-133.

  • Deposit

    HAUSEL, W.D., 1980, GOLD DISTRICTS OF WYOMING: GEOLOGICAL SURVEY OF WYOMING REPORT OF INVESTIGATIONS 23, P. 37.

  • Deposit

    HAUSEL, W.D., 1989, THE GEOLOGY OF WYOMING'S PRECIOUS METAL LODE AND PLACER DEPOSITS: GEOLOGICAL SURVEY OF WYOMING BULLETIN 68, P. 94.

General comments

Subject category Comment text
Deposit "A 775 foot drift was driven northeastward in part along a 2-3 inch thick quartz vein that parallels schistosity and cataclastic foliation of the enclosing mafic schists and submylonites. According to Hess (1926, p. 1320 "neither gold nor platinum was reported in this drift." A 325 [sic] crosscut extending to the northwest from near the end of the main drift cuts four quartz and sulphide bearing fracture zones, at least one of which supposedly contained gold. Traces of platinum were reported from a short drift pralleling one of the fracture zones (Hess, 1926, p. 132)." (McCallum, 1968, p. 11)
Deposit 4 QUARTZ AND SULFIDE BEARING FRACTURE ZONES; UNPUBLISHED MODEL NAME: NEW RAMBLER CU-AU-PGE.

Reporter information

Type Date Name Affiliation Comment
Reporter 1975-02-01 Blair, Will N. U.S. Geological Survey
Updater 1991-08-01 Peterson, Jocelyn A. U.S. Geological Survey
Reporter 1983-11-18 Intermountain Field Operations Center (IFOC) U.S. Bureau of Mines MAS 0560010117 = newMRDS 10205165
Editor 2011-08-04 Wilson, Anna B U.S. Geological Survey MAS 0560010117 = newMRDS 10205165, merged and deleted.