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

Ptarmigan Creek (tributary of Birch Creek)

Prospect in Alaska, United States with commodity Gold
Map
XML
JSON
KML
C
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Nearby scientific data
  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 10307349
Record type Site
Current site name Ptarmigan Creek (tributary of Birch Creek)

Geographic coordinates

Geographic coordinates: -145.52194, 65.43972 (WGS84)
Relative position Ptarmigan Creek is a tributary of Birch Creek. It flows south from Porcupine Dome and crosses the Steese Highway in the NW1/4 NE1/4 sec. 17, T. 7 N., R. 11 E.

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Circle B-4(quadrangle 1:63,360 scale)

Circle SE(quadrangle 1:100,000 scale)

Circle C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

BLM(Federal land areas administered by BLM)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Nearby scientific data

(1) PzPxyqs
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Headwaters of Ptarmigan Creek are on the south slopes of Porcupine Dome. Bedrock underlying Ptarmigan Creek is the Upper Quartzite and Upper Schist units mapped by Wiltse and others (1995). The Upper Quartzite consists of porphyroblastic-albite-chlorite-muscovite-quartz schist, quartzites and micaceous quartzites. The Upper Schist is a mixed unit dominated by variably garnetiferous, pelitic quartz-muscovite schist, muscovite-quartz schist and chlorite-quartz-muscovite schist with distinct intervals of garnetiferous calcareous albite-porphyroblastic muscovite-chlorite schist. Sediments are said to contain large amounts of copper (Burand, 1965). Gold can be readily panned from the thin veneer of gravels on the bedrock in Ptarmigan Creek just upstream from its junction with Eagle Creek (Lampright, 1996, p. 75). Known years of activity are 1925, 1953, 1954 and 1969 through 1982 (Menzie and others, 1983, p. 51).

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Inactive

Mining district

District name Circle

Comments on the workings information

  • Workings / Exploration = Known years of activity are 1925, 1953, 1954 and 1969 through 1982 (Menzie and others, 1983, p. 51).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Menzie and others, 1983.

General comments

Subject category Comment text
Deposit Model Name = Gold placer deposit (Cox and Singer, 1986; model 39a)

Reporter information

Type Date Name Affiliation Comment
Reporter 14-SEP-98 C.J. Freeman, J.R. Guidetti Schaefer, A.S. Clements Avalon Development Corporation

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.