Hillside

Occurrence in Alaska, United States with commodities Lead, Zinc, Iron
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10308493
Record type Site
Current site name Hillside

Geographic coordinates

Geographic coordinates: -154.12895, 63.4395 (WGS84)
Relative position The Hillside lead occurrence is on a south-facing slope at 1,800 feet (549 m) in elevation near the West Fork of Beaver Creek; it is about 2,500 feet (760 m) southwest of the Beaver prospect in Section 6, T. 24 S., R. 25 E., of the Kateel River Meridian. Location is known within about 250 feet (76 m).

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Medfra B-3(quadrangle 1:63,360 scale)

Medfra S(quadrangle 1:100,000 scale)

Medfra C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

North Fork Kuskokwim River(hydrologic unit)

Upper Kuskokwim River(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Lead Primary
Zinc Critical Primary
Iron Secondary

Comments on the commodity information

  • Ore Material = iron-rich gossan

Materials information

Materials Type of material
Galena Ore
Goethite Ore
Dolomite Gangue

Mineral occurrence model information

Model code 227
USGS model code 32a
Deposit model name Mississippi valley, without Missouri
Mark3 model number 109
Model code 226
USGS model code 32a
Deposit model name Mississippi Valley, updated
Mark3 model number 108
Model code 224
USGS model code 32a
Deposit model name Mississippi Valley, S.E. Missouri Pb-Zn
Mark3 model number 42

Host and associated rocks

  • Host or associated Host
    Rock type
    Stratigraphic age (youngest) Late Silurian
    Stratigraphic age (oldest) Early Cambrian

Nearby scientific data

(1) -154.12895, 63.4395

Economic information

Comments on the geologic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name McGrath

Comments on the workings information

  • Workings / Exploration = The Hillside occurrence was discovered by WGM Inc. and Patino Ltd. during exploration for base metals in the 'Reef Ridge district' (Schmidt, 1997). Grab samples from surface exploration contain from 0.22 to 2.40 percent lead with up to 2,200 ppm zinc in a 100 feet by 50 feet (30 m by 15 m) area (Schmidt, 1997).

Reference information

Bibliographic references

  • Deposit

    Patton, W.W., Jr., Moll, E.J., Dutro, J.T., Jr., Silberman, M.L., and Chapman, R.M., 1980, Preliminary geologic map of Medfra quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-811-A, 1 sheet, scale l:250,000.

  • Deposit

    Blodgett, R.B., 1982, Stratigraphy of Reef Ridge project area: WGM Inc., Anchorage, Alaska, Reef Ridge Project area, Block 10, Doyon region: 34 pages.

  • Deposit

    Dutro, T.T. Jr., and Patton,W.W. Jr., 1982, New Paleozoic Formations in the northern Kuskokwim Mountains, west-central Alaska: U.S. Geological Survey Bulletin 1529-H, p. H13-H22.

  • Deposit

    Anderson, G.M., and Macqueen, R.W., 1988, Mississippi Valley Type lead-zinc deposits, in Roberts, R.G., and Sheahan, P.A., eds., Ore deposit models: Geoscience Canada Reprint Series 3, Ottawa, Canada, p. 79-90.

  • Deposit

    Schmidt, J.M., 1997, Shale-hosted Zn-Pb-Ag and barite deposits of Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Mineral Deposits of Alaska, 1997: Economic Geology Monograph 9, p. 35-65.

Comments on the references

  • Primary Reference = Schmidt, 1997

General comments

Subject category Comment text
Deposit Model Name = Southeast Missouri Pb-Zn (Cox and Singer, 1986; model no. 32a) or Mississippi Valley Type
Deposit Other Comments = See Beaver (MD048), Big Gate (MD050), and Bermuda (MD045) Mississippi Valley Type showings.

Reporter information

Type Date Name Affiliation Comment
Reporter 02-JUN-98 Bundtzen, T.K. (Pacific Rim Geological Consulting) Pacific Rim Geological Consulting

Beyond USGS

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

Authoritative Alaska resources

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