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  3. Mineral Resource Data System (MRDS)

Poorman Creek Placer

Past Producer in Alaska, United States with commodity Gold
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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. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10003038
MRDS ID A015559
Record type Site
Current site name Poorman Creek Placer
Related records 10160113

Geographic coordinates

Geographic coordinates: -155.65027, 64.07726 (WGS84)
Location accuracy 250(meters)

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

  • USGS MF-405, LOC. 32. PLACER AT MOUTH AND A SHORT DISTANCE BELOW MOUTH OF SOLOMON CREEK. 4 CLAIMS LIE ON VALLEY FLOOR OF POORMAN CREEK. 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

Materials information

Materials Type of material
Gold Ore

Analytical data

Result AVERAGE FINENESS 835 PARTS AU AND 159 PARTS AG.

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel

Nearby scientific data

(1) -155.65027, 64.07726
ListMap

Economic information

Comments on the geologic information

  • SURFACE OF BEDROCK IS VERY IRREGULAR, 5 FT. OR MORE OF BEDROCK HAD TO BE REMOVED AT SOME PLACES IN ORDER TO HOLD AN EVEN GRADE IN THE DRIFTS. PLACERS PROBABLY AT WESTERN LIMIT OF MINERALIZED ZONE IN POORMAN AREA. ; MAJOR.UNITS: BEDROCK IS DEEPLY WEATHERED; APPARENTLY IT IS A CHERT GRIT.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1930

Mining district

District name Ruby

Land status

Ownership category State

Ownership information

  • Type Owner
    Owner Stevens And Lohr

Comments on the workings information

  • SHAFTS SUNK APPROXIMATELY 70 FEET TO BEDROCK FOR DRIFT MINING; ALLUVIUM SOLIDLY FROZEN.

Comments on development

  • PAY STREAK DISCOVERED IN 1930. WINTER AND SUMMER DRIFT MINING REPORTED BETWEEN 1930 AND 1933.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit MOST OF GOLD OCCURS IN THE UPPER 12 TO 18 INCHES OF BEDROCK, PARTICULARLY WHERE MANY SMALL QUARTZ PEBBLES OCCUR IN THE DISINTEGRATED BEDROCK. GOLD IS FOUND OVER A WIDTH OF 100 FEET, BUT THE PAY STREAK IS ONLY 30 FEET WIDE, AND THE RICHEST PART IS CONFINED TO 15 FEET. ONE SECTION SHOWED 10 FEET OF MUCK UNDERLAIN BY 60 FEET OF GRAVEL CONTAINING THIN STREAKS OF MUCK.
Deposit STREAM GRADIENT IN MINED AREA UNDER 50 FEET PER MILE. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
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-JUL-1987 Powers, M.T. (Huber, D.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.