1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Pinnacle Gulch Placer

Occurrence in Alaska, United States with commodities Tin, REE
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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. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Land status
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10003240
MRDS ID A016058
Record type Site
Current site name Pinnacle Gulch Placer

Geographic coordinates

Geographic coordinates: -166.20456, 65.91986 (WGS84)
Relative position UPPER PORTION OF PINNACLE CR.

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Teller D-3(quadrangle 1:63,360 scale)

Teller NE(quadrangle 1:100,000 scale)

Teller C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Shishmaref(hydrologic unit)

Northern Seward Peninsula(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Bering Straits Native Corporation(ANCSA Region)

ANCSA Region NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS BULLETIN 1024-C, PLATE 10, SAMPLES 1221-1247; NUMEROUS STREAM SED. SAMPLES TAKEN ALONG UPPERMOST 1 MILE OF DRAINAGE; LOCATION GIVEN FOR SAMPLE 1225 AT HEADWATER FORK. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Tin Critical Tertiary
REE Critical Tertiary

Materials information

Materials Type of material
Cassiterite Ore
Monazite Ore

Analytical data

Result CONC. SAMPLE: 0.180% EU
Result 0.065% U (REMAINDER IN TH?)
Result REF 1, P. 83.

Nearby scientific data

(1) Klgr
ListMap

Economic information

Ore body information

  • Length 716.28M
    Width 21.34M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Port Clarence/Ear Mt.

Land status

Ownership category State

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit MINOR AMOUNTS OF CASSITERITE, MONAZITE, AND ZIRCON IN SLIGHTLY RADIOACTIVE PLACER SAMPLE CONCENTRATES; ESTIMATED VOLUME OF GRAVEL: (BOTH HEADWATER GULCHES TO MTN. FRONT) 106,000 CY IN DEPOSIT TOTALLING 2350 FT IN LENGTH AND 15-70 FT IN WIDTH.
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1987 Leonard, Kenneth R. (Huber, Donald F.) 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.