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Unnamed (lower Boulder Creek)

Prospect in Alaska, United States with commodity Gold
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Geologic information

Identification information

Deposit ID 10308945
MRDS ID A012825
Record type Site
Current site name Unnamed (lower Boulder Creek)
Related records 10001981

Geographic coordinates

Geographic coordinates: -165.49858, 64.64338 (WGS84)
Relative position This prospect is at an elevation of about 175 feet on lower Boulder Creek, a west tributary to Snake River. The prospect is near the edge of the Snake River flood plain and about 6,000 feet upstream from the mouth of Boulder Creek. The map location is at the southwest corner of section 4, T. 10 S., R. 34 W., Kateel River Meridian. It is included in locality 94 of Cobb (1972 [MF 463], 1978 [OFR 78-93]).
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Limonite Ore
Pyrite 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

Nearby scientific data

(1) -165.49858, 64.64338
ListMap

Comments on the geologic information

  • Geologic Description = Auriferous quartz veins near the mouth of Boulder Creek were reported to contain 0.15 to 0.20 ounce of gold per ton (Collier and others, 1908, p. 196). Mertie (1918) reported a gold-bearing quartz vein in the bed of Boulder Creek on placer claim No. 1 Below Discovery; it was in a fault zone from which free gold could be panned. Examination of this area in 1991 located a lode prospect on the north side of Boulder Creek about 800 feet upstream from the downstream limit of patented mining claims. At this point, a short adit had been driven northeast on a limonite-stained quartz vein (Kennecott Exploration Company, written communication, 1992). The limonite probably replaced pyrite. No free gold was observed, but a sample of the vein contained about 0.1 ounce of gold per ton.
  • Age = Mid-Cretaceous or younger; postdates regional metamorphism of the host rocks.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Nome

Comments on the workings information

  • Workings / Exploration = A short adit, now caved, was driven northeast on an iron-stained quartz vein. This may be the same prospect as that reported by Collier and others (1908).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF NM195
USGS Mineral Resources Data System MRDS A012815
USGS Mineral Resources Data System MRDS A012825

Bibliographic references

  • Deposit

    Collier, A. J., Hess, F.L., Smith, P.S., and Brooks, A.H., 1908, The gold placers of parts of Seward Peninsula, Alaska, including the Nome, Council, Kougarok, Port Clarence, and Goodhope precincts: U.S. Geological Survey Bulletin 328, 343 p.

  • Deposit

    Moffit, F.H., 1913, Geology of the Nome and Grand Central quadrangles, Alaska: U.S. Geological Survey Bulletin 533, 140 p.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Nome quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-463, 2 sheets, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Nome quadrangle, Alaska: U.S. Geological Survey Open-File report 78-93, 213 p.

  • Deposit

    Mertie, J.B., Jr., 1918, Placer mining on Seward Peninsula: U.S. Geological Survey Bulletin 662, p. 451-458.

Comments on the references

  • Primary Reference = Collier and others, 1908

General comments

Subject category Comment text
Deposit Model Name = Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a).

Reporter information

Type Date Name Affiliation Comment
Reporter 10-JUL-00 Hawley, C.C. and Hudson, Travis L. Hawley Resource Group