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Comeback

Prospect 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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10003448
MRDS ID A106204
Record type Site
Current site name Comeback
Alternate or previous names Gray Eagle

Geographic coordinates

Geographic coordinates: -149.37269, 61.79955 (WGS84)
Relative position Midway up the ridge northwest of Craigie Creek at 3,800 ft elevation, 2.1 miles northeast of VABM Box. Accurate within 2,000 ft.

Site location context

Political divisions (FIPS codes)

Matanuska-Susitna(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Anchorage D-7(quadrangle 1:63,360 scale)

Anchorage NW(quadrangle 1:100,000 scale)

Anchorage(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Susitna River(hydrologic unit)

Susitna River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Host
    Rock type
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -149.37269, 61.79955
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Details about the prospect are scarce. Most likely, a gold-bearing quartz vein(s) cuts the Late Cretaceous Willow Creek Pluton. The Willow Creek Pluton is a zoned pluton. The outer part consists of hornblende quartz diorite and lesser hornblende tonalite; the core consists of hornblende-biotite granodiorite, and lesser hornblende-biotite quartz monzodiorite and biotite quartz monzonite.
  • Age = Late Cretaceous or younger; the host of mineralization is the Late Cretaceous Willow Creek Pluton.
  • Age = Late Cretaceous or younger; the host of mineralization is the Late Cretaceous Willow Creek Pluton.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Willow Creek

Comments on the production information

  • Production Notes = Knik miner Milo Kelly recovered about 60 ounces of gold from a few hundred pounds of ore mined from shallow workings on the Gray Eagle property (Vinal, 1940).

Comments on the workings information

  • Workings / Exploration = Apparently only minor surface prospecting.

Reference information

Bibliographic references

  • Deposit

    Vinal, E.L., 1940, Gold Top-Gray Eagle Group of Claims, Craigie Creek Basin, Wasilla Mining District, Alaska: Report prepared for Alaska-Pacific Consolidated Mining Company. W.M. and J.A. Stoll collection, Archives and Manuscripts Department, University of Alaska, Anchorage, Alaska.

  • Deposit

    Cohen, K.K., 1982, Independence mine and the Willow Creek mining district: Alaska Division of Parks Miscellaneous Publications, History of Archaeology series, No. 32, 169 p.

  • Deposit

    Stoll, W.M., 1997, Hunting for gold in Alaska's Talkeetna Mountains 1897-1951: Greensburg, Pennsylvania, Henry Printing, 301 p.

Comments on the references

  • Primary Reference = Stoll, 1997

General comments

Subject category Comment text
Deposit Model Name = Low-sulfide Au-quartz veins ? (Cox and Singer, 1986; model 36a ?)
Deposit Other Comments = This prospect was originally part of the Gold Top (ARDF number AN014) claims.

Reporter information

Type Date Name Affiliation Comment
Reporter 30-JUL-1998 D.P. Bickerstaff 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.