Sunrise, Newsboy, and Red Top claims of 'Doc' Silver

Occurrence in Alaska, United States with commodities Gold, Silver, Lead

Geologic information

Identification information

Deposit ID 10002284
MRDS ID A013188
Record type Site
Current site name Sunrise, Newsboy, and Red Top claims of 'Doc' Silver
Related records 10209893

Geographic coordinates

Geographic coordinates: -136.47708, 58.38166 (WGS84)
Relative position This site is on the northwest side of the mountain between Dundas Bay and the west arm of the Bay. The deposits are probably in the SW 1/4, section 22, T. 40 S., R. 54 E., of the Copper River Meridian. Mine workings mentioned by Stewart (1949) on the Red Top claims were at about 440-foot elevation. The location is probably within the old claim block and within about 0.25 mile of the site on the ground.? The site is approximately the same as number 57 of MacKevett and others (1971) and number 66 of Kimball and others (1978).
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Lead Secondary

Comments on the commodity information

  • Ore Material = Gold (native)

Materials information

Materials Type of material
Galena Ore
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 Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -136.47708, 58.38166

Comments on the geologic information

  • Geologic Description = Auriferous quartz veins occur in or near the contact zone of a foliated granitic intrusion of Cretaceous age and quartz-feldspar-hornblende gneiss of Paleozoic ancestry (Brew and others, 1978). The age of mineralization is believed to be Late Cretaceous or younger, as undeformed quartz veins occur in and cut foliated granitic rocks of Cretaceous age. ? the property consisted of about 47 lode claims when it was visited by Stewart of the Territorial Department of Mines in 1938 (Stewart, 1949). Stewart reported a steeply dipping quartz vein 1 to 2 feet thick near 440 feet elevation. In a later investigation, the U.S. Bureau of Mines (Kimball and others, 1978) found quartz veins near the approximate site of Stewart's examination. One quartz vein was 0.5 foot thick; another, in diorite country rock, was about 2 feet thick. A vein, sampled over 1.9 ft. width, contained 5 ppm silver, 250 ppm lead, and 0.275 ounce per ton gold.
  • Age = Late Cretaceous or younger.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Juneau

Comments on the workings information

  • Workings / Exploration = Stewart (1949) reported mine workings and an auriferous quartz vein near 440 feet elevation above Dundas Bay. The vein was observed during an examination that he made in 1938. Kimball and others (1978) found mining debris, probably near Stewart's location. A 1.9 foot vein sampled by the Bureau of Mines in 1975 contained 0.275 oz/ton gold, 5 ppm silver and 250 ppm lead.? the site appears to have been active in the late 1930s, with as least as many as 47 claims--24 Sunrise, 15 Newsboy, and 8 Red Top. Stewart (1949) reported that, in 1933, 'Doc' Silver held two Red Top claims. The area is steep and brushy, but because of the evidence of mining activity found by the U.S. Bureau of Mines in 1975, the site is almost certainly at least partly coincident with the area of the 'Doc' Silver claims. The auriferous vein found by the U.S. Bureau of Mines may not, however, be the same vein that was reported by Stewart.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A013188
USGS Alaska Resource Data File ARDF MF074

Bibliographic references

  • Deposit

    MacKevett, E.M., Jr., Brew, D.A., Hawley, C.C., Huff, L.C., and Smith, J.G., 1971, Mineral resources of Glacier Bay National Monument, Alaska: U.S. Geological Survey Professional Paper 632, 90 p., 12 plates, scale 1:250,000.

  • Deposit

    Brew, D.A., Johnson, B.R., Grybeck, D., Griscom, A., Barnes, D.F., Kimball, A.L., Still, J.C., and Rataj, J.L., 1978, Mineral resources of the Glacier Bay National Monument Wilderness Study Area, Alaska: U.S. Geological Survey Open-File Report 78-494, 670 p.

  • Deposit

    Kimball, A.L., Still, J.C., and Rataj, J.L., 1978, Mineral resources, in Brew, D. A., and others, Mineral resources of the Glacier Bay National Monument wilderness study area, Alaska: U.S. Geological Survey Open-File Report 78-494, p. C1-C375.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Mount Fairweather quadrangle, AK: U.S. Geological Survey Miscellaneous Field Study Map MF-436, 1 sheet, scale 1:250,000.

  • Deposit

    Stewart, B.D., 1949, Memorandum on Red Top property, Dundas Bay, Juneau precinct: Alaska Territorial Department of Mines Property Examination 111-3, 2 p.

Comments on the references

  • Primary Reference = Stewart, 1949

General comments

Subject category Comment text
Deposit Model Name = Low-sulfide gold-quartz vein (Cox and Singer, 1986; model 36a).
Deposit Other Comments = the site is in Glacier Bay National Park and Preserve.

Reporter information

Type Date Name Affiliation Comment
Reporter 14-APR-99 Hawley, C.C. Hawley Resource Group