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

Poorman Area

Past Producer in Alaska, United States with commodities Gold, Silver, 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. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  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 10100949
MRDS ID A010742
Record type Site
Current site name Poorman Area
Alternate or previous names Tamarack Creek, Spruce Creek, Solomon Creek, Moose Creek

Geographic coordinates

Geographic coordinates: -155.63084, 64.09948 (WGS84)

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ruby A-6(quadrangle 1:63,360 scale)

Ruby S(quadrangle 1:100,000 scale)

Ruby(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • A PRODUCTIVE PLACER AREA OF APPROXIMATELY 100 SQ MI. IN AN OBLONG SHAPED ARE NE AND SW OF GIVEN LOCATION LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Tin Critical Tertiary

Materials information

Materials Type of material
Cassiterite Ore
Gold Ore

Analytical data

Result FINENESS OF GOLD ABOUT 0.84 AU, 0.15 AG

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel

Nearby scientific data

(1) -155.63084, 64.09948
ListMap

Economic information

Comments on the geologic information

  • MAJOR.UNITS: PHYLLITE AND RHYOLITE PORPHYRY

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1912
Year of last production 1975

Mining district

District name Ruby District

Land status

Ownership category State

Comments on the production information

  • PRODUCED 200,000-300,000 TOZ AU, 30,000-40,000 OZ AG AND A FEW THOUSAND POUNDS OF TIN CONCENTRATES

Comments on the workings information

  • POSSIBLY SOME DRIFT MINING

Reference information

Bibliographic references

  • Deposit

    USGS B 1374, P. 167-171

  • Deposit

    USGS OFR 81-170, P. 58-59, 67-68, 70-70, 76-77

General comments

Subject category Comment text
Deposit GOLD FROM CHANNELS IN FOSSIL DRAINAGE NOT RELATED TO CURRENT DRAINAGES. SOME GOLD REWORKED IN CURRENT STREAMS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1984 Hirschmann, M. M. (Elliott, R. L.) 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.