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  3. Mineral Resource Data System (MRDS)

Unnamed (in the Yenlo Hills)

Occurrence in Alaska, United States with commodities Gold, Chromium, Nickel, PGE
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10308451
Record type Site
Current site name Unnamed (in the Yenlo Hills)

Geographic coordinates

Geographic coordinates: -151.23877, 62.17853 (WGS84)
Relative position This site is located in a drainage bottom in the southeast quarter of Section 11, T. 24 N., R. 11 W., of the Seward Meridian. It is approximately two and a half miles west of TL071 at the north end of the Yenlo Hills.

Site location context

Political divisions (FIPS codes)

Matanuska-Susitna(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Talkeetna A-3(quadrangle 1:63,360 scale)

Talkeetna SE(quadrangle 1:100,000 scale)

Talkeetna C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Yentna River(hydrologic unit)

Susitna River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Chromium Critical Primary
Nickel Critical Primary
PGE Critical Primary

Materials information

Materials Type of material
Arsenopyrite Ore
Pyrite Ore
Quartz Gangue

Alteration

  • (Local) Some clay gouge, with pyrite and quartz, is reported in a fault zone in the sedimentary rocks.

Nearby scientific data

(1) -151.23877, 62.17853
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Diamond Gold Corporation reports a discovery of gold-rich arsenopyrite veins that average 0.10 oz/ton gold and 2 oz/ton silver (company press release, 10/14/98). Trenching exposes the one vein in a 400-foot-long zone (width not specified). They indicate the mineralization is related to the 'Hudson Stock', a gabbro body which returned assays of anomalous nickel, chromite and platinum-group-elements (values not released). The ultramafic body, which intrudes Mesozoic marine sedimentary rocks (KJs, Reed and Nelson, 1980), produced extensive hornfels areas with stockwork quartz veinlets (C.C. Hawley, oral communication).

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Active

Mining district

District name Yentna

Comments on the workings information

  • Workings / Exploration = Trenching, rock chip sampling and mapping by Diamond Gold Corporation were conducted during 1998. They indicate the mineralization is related to the 'Hudson Stock', a gabbro body which returned assays of anomalous nickel, chromite and platinum-group-elements (values not released).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = This record

Reporter information

Type Date Name Affiliation Comment
Reporter 10-AUG-98 Madelyn A. Millholland Millholland & Associates

Beyond USGS

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

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.