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Rob Roy

Past Producer in Alaska, United States with commodities Gold, Antimony
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Geologic information

Identification information

Deposit ID 10002966
MRDS ID A015463
Record type Site
Current site name Rob Roy
Alternate or previous names Saucy, Wolf

Geographic coordinates

Geographic coordinates: -147.30684, 65.07857 (WGS84)
Relative position Cobb (1972, MF-413), loc. 51; NW1/4NE1/4 sec. 22, T. 3 N., R. 2 E., of the Fairbanks Meridian. This deposit is on the divide at the head of Too Much Gold Creek. Accuracy is within 1,500 feet.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Antimony Secondary

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Stibnite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -147.30684, 65.07857
ListMap

Comments on the geologic information

  • Geologic Description = High grade gold mineralization occurs in a shear zone 30 feet wide that strikes N 60 W. The shear exhibits two mineralized zones that contain quartz with pyrite, gold and stibnite, as well as irregular or kidney-shaped pods of stibnite (Brooks, 1916; B 649). Intrusive breccia was noted to be present on the dump of the Rob Roby shaft (Pilkington, 1970). A small amount of ore was custom milled from a 100-foot shaft with 170 feet of drifts (Brooks, 1916; B 649). Operation were suspended in mid-1918 because of excess water in the workings (Martin, 1920).

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Fairbanks

Comments on the production information

  • Production Notes = A small amount of ore was customed milled but production figures are not known (Brooks, 1916; B 649).

Comments on the workings information

  • Workings / Exploration = Workings consisted of a 100 foot shaft and 170 feet of drifts on two levels (Brooks, 1916; B 649).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A015463
USGS Alaska Resource Data File ARDF LG173

Bibliographic references

  • Deposit

    Eakin, H.M., 1915, Placer mining in Seward Peninsula: U.S. Geological Survey Bulletin 622-I, p. 366-373.

  • Deposit

    Brooks, A.H., 1916, Antimony deposits of Alaska: U.S. Geological Survey Bulletin 649, 67 p.

  • Deposit

    Brooks, A.H., 1916, Antimony deposits of Alaska: U.S. Geological Survey Bulletin 649, 67 p.

  • Deposit

    Martin, G.C., 1920, The Alaska mining industry in 1918: U.S. Geological Survey Bulletin 712-A, p. 1-52.

  • Deposit

    Chapman, R.M., and Foster, R.L., 1969, Lode mines and prospects in the Fairbanks district, Alaska: U.S. Geological Survey Professional Paper 625-D, 25 p., 1 plate.

  • Deposit

    Pilkington, H.D., 1970, Keystone Mines Inc. exploration program summary: International Minerals & Chemicals Corporation, 61 p. , 1 plate.

  • Deposit

    Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Circle quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-633, 72 p.

  • Deposit

    Freeman, C.J., 1992, 1991 Golden Summit project final report, volume 2: Historical summary of lode mines and prospects in the Golden Summit project area, Alaska: Avalon Development Corp., 159 p. (Report held by Freegold Recovery Inc. USA, Vancouver, British Columbia.)

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Livengood quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-413, 2 sheets, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Livengood quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-819, 241 p.

Comments on the references

  • Primary Reference = Brooks, 1916 (B 642)

General comments

Subject category Comment text
Deposit Model Name = Gold and stibnite in quartz shear zones.

Reporter information

Type Date Name Affiliation Comment
Reporter 04-MAY-1999 C.J. Freeman Avalon Development Corporation
Reporter 04-MAY-1999 J.R. Guidetti Schaefer Avalon Development Corporation