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  3. Mineral Resource Data System (MRDS)

McRoberts Creek

Occurrence in Alaska, United States with commodities Mercury, Tungsten
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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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10009649
MRDS ID D002738
Record type Site
Current site name McRoberts Creek

Geographic coordinates

Geographic coordinates: -148.99266, 61.58956 (WGS84)
Relative position Along McRoberts Creek: Sec. 6, T. 17 N., R. 3 E., of the Seward Meridian. Accurate within 1 mile. Locality 74 and 75 of Jasper (1967) and locality 91 of Cobb (1972).

Site location context

Political divisions (FIPS codes)

Matanuska-Susitna(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Anchorage C-6(quadrangle 1:63,360 scale)

Anchorage NW(quadrangle 1:100,000 scale)

Anchorage C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Matanuska(hydrologic unit)

Knik Arm(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Mercury Primary
Tungsten Critical Primary

Materials information

Materials Type of material
Cinnabar Ore
Magnetite Ore
Pyrite Ore
Scheelite Ore
Ilmenite Ore

Nearby scientific data

(1) -148.99266, 61.58956
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Jasper (1967) reported creek float consisting of granite, greenstone and ultramafic rocks. Concentrates include: magnetite, scheelite, pyrite, ilmenite, and a trace of cinnabar.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Anchorage

Comments on the workings information

  • Workings / Exploration = Pan concentrates contain 50 to 60 percent magnetite, less than 1 percent scheelite, about 1 percent pyrite, a few grains of ilmenite, and 1 grain of cinnabar (Jasper, 1967).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Jasper, 1967

General comments

Subject category Comment text
Deposit Other Comments = It appears that McRoberts Creek has also been referred to as Bodenburg Creek and Palmer Creek on various maps.

Reporter information

Type Date Name Affiliation Comment
Reporter 30-JUL-1998 D.P. Bickerstaff U.S. Geological Survey
Reporter 30-JUL-1998 S.W. Huss 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

Authoritative Alaska resources

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