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  3. Mineral Resource Data System (MRDS)

Ironton Group

Prospect in Alaska, United States with commodities Lead, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Ore body information
  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 10003642
MRDS ID A106406
Record type Site
Current site name Ironton Group

Geographic coordinates

Geographic coordinates: -133.34161, 56.80974 (WGS84)
Relative position SEE LOCATION COMMENTS

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Petersburg D-5 SE(quadrangle 1:24,000 scale)

Petersburg N(quadrangle 1:100,000 scale)

Petersburg(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Central Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Tongass National Forest(National Forest)

National Forest UND(Type of land area)

UND(Federal land areas administered by UND)

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

  • DESCRIPTION NOT ENTIRELY CLEAR BUT THE IRONTON GROUP CONSISTED OF FIVE CLAIMS STAKED ALONG THE SHORELINE OF UPPER HALF OF TOWER ARM, PROBABLY ON THE WEST SHORE (ROEHM, 1946 [IR 195-41]). LOCATION KNOWN ONLY TO WITHIN TWO MILES OF SHORELINE BUT LIKELY TO BE IN SECTION 19 OR 30, T. 58 S., R. 76 E.

Commodities

Commodity Importance
Lead Primary
Zinc Critical Primary

Nearby scientific data

(1) -133.34161, 56.80974
ListMap

Economic information

Ore body information

  • General form SEE DEPOSIT DESCRIPTION COMMENTS

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Significant No

Comments on exploration

  • Status = Active

Mining district

District name Kupreanof

Comments on the production information

  • NONE

Comments on the workings information

  • AN OLD OBSCURE PROSPECT THAT HAS HARDLY BEEN MENTIONED IN A HALF CENTURY. HOWEVER, THE AREA IS PROBABLY PRESENTLY UNDER CLAIM IN ONE OF THE LARGE CLAIM BLOCKS THAT HAVE STAKED IN THE VICINITY IN THE LAST SEVERAL YEARS AS A RESULT OF RENEWED INTEREST IN THE DUNCAN CANAL AREA.

Reference information

General comments

Subject category Comment text
Deposit ROEHM (1945 [IR 195-41]) DESCRIBES THE PROSPECTS AS A ZONE OF MINERALIZED SCHIST THAT OUTCROPS AT HIGH TIDE. PYRITE IS DISSEMINATED AND IN NARROW THIN SEAMS IN THE SCHIST. SMALL SPECKS OF SPHALERITE AND GALENA OCCUR IN SOME OF THE THICKER SEAMS. RECENT GEOLOGIC MAPPING (SUE KARL, ORAL COMMUNICATION, 1998) INDICATES THAT THE ROCKS ON THE WEST SIDE OF TOWER ARM DEFINITELY INCLUDE DEVONIAN SCHISTS AND MAY INCLUDE SOME OF THE TRIASSIC HYD GROUP THAT HOSTS VOLCANOGENIC MASSIVE-SULFIDE DEPOSITS IN THE REGION.

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.