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

Unnamed Near Porterfield Creek

Unknown in Alaska, United States with commodity Tin
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Mineral occurrence model information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10003655
MRDS ID A106424
Record type Site
Current site name Unnamed Near Porterfield Creek

Geographic coordinates

Geographic coordinates: -132.08767, 56.51864 (WGS84)
Relative position SEE LOCATION COMMENTS

Site location context

Political divisions (FIPS codes)

Wade Hampton(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Petersburg C-1(quadrangle 1:63,360 scale)

Petersburg N(quadrangle 1:100,000 scale)

Petersburg(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Southern Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Tongass National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • SIXTEEN PLACER CLAIMS KNOWN ONLY GENERALLY TO BE ALONG PORTERFIELD IN SECTIONS 1, 2 AND 11, T. 62 S., R. 85 E. COORDINATES ARE APPROXIMATELY THE CENTER OF THE CLAIM BLOCK (U.S. BUREAU OF MINES, 1980).

Commodities

Commodity Importance
Tin Critical Primary

Mineral occurrence model information

Model code 123
USGS model code 39e
Deposit model name Alluvial placer Sn

Nearby scientific data

(1) -132.08767, 56.51864
ListMap

Economic information

Ore body information

  • General form SEE DEPOSIT DESCRIPTION COMMENTS

Economic information about the deposit and operations

Commodity type Metallic
Significant No

Mining district

District name Petersburg

Comments on the production information

  • PROBABLY NONE

Comments on the workings information

  • SIXTEEN PLACER CLAIMS STAKED FOR SN; ACTIVE FROM 1965 TO 1967 BUT APPARENTLY NOT SINCE.

Reference information

Bibliographic references

  • Deposit

    U.S. Bureau of Mines, 1980, Claim map, Petersburg quadrangle, Alaska: U.S. Bureau of Mines Map No. 117, 1 sheet, scale 1:250,000.

  • Deposit

    Grybeck, D. J., Berg, H. C., and Karl, S. M., 1984, Map and description of the mineral deposits in the Petersburg and eastern Port Alexander quadrangles: U.S. Geological Survey Open-File Report 84-837, 86 p., 1 sheet, scale 1:250,000.

General comments

Subject category Comment text
Deposit SIXTEEN PLACER CLAIMS STAKED FOR SN; ACTIVE FROM 1965 TO 1967 BUT APPARENTLY NOT SINCE (U.S. BUREAU OF MINES, 1980). NOTE THAT A VIABLE SOURCE FOR PLACER TIN HAS BEEN DOCUMENTED IN THE AG-SN-PB-ZN LAYERED SKARN DEPOSIT IN UPPER GROUNDHOG BASIN (PE040).

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1998 Berg, H. C. (Grybeck, D. J.) 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.