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  3. Alaska Resource Data File (ARDF)

Edgecumbe Exploration (Placer)

Prospect, Undetermined

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Commodities and mineralogy

Main commodities Au

Geographic location

Quadrangle map, 1:250,000-scale SI
Quadrangle map, 1:63,360-scale A-4
Latitude 57.0132
Longitude -135.1452
Nearby scientific data Find additional scientific data near this location
Location and accuracy This placer prospect is at sea level at the head of Bear Cove. The prospect is 0.3 mile west of the center of sec. 18, T. 56 S., R. 65 E. It is MAS no. 0021140022 (U.S. Bureau of Land Management, 2002). The location is accurate within 0.5 mile.

Geologic setting

Geologic description

The rocks in the vicinity of this placer prospect are part of a Triassic and/or Jurassic unit that consists of biotite schist and gneiss with some amphibolite, quartzite, phyllite, and hornfels (Loney and others, 1975). The only information about this prospect is that a placer claim was staked for gold here (U.S. Bureau of Land Management, 2002). Its location is shown on a map in Bittenbender and others (1999) but it is not described otherwise.
Geologic map unit (-135.146963623201, 57.0128368717106)
Mineral deposit model Gold placer (Cox and Singer, 1986; model 39a).
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration The only information about this prospect is that a placer claim was staked here.
Indication of production None

References

References

Bittenbender, P., Still, J.C., Maas, K., and McDonald, M., Jr., 1999, Mineral resources of the Chichagof and Baranof Islands area, southeast Alaska: Bureau of Land Management, BLM-Alaska Technical Report 19, 222 p.
Loney, R.A., Brew, D.A., Muffler, L.J.P., and Pomeroy, J.S., 1975, Reconnaissance geology of Chichagof, Baranof, and Kruzof Islands, southeastern Alaska: U.S. Geological Survey Professional Paper 792, 105 p.
U.S. Bureau of Land Management, 2002, Alaska mineral locations database report (Sitka quadrangle), July 2, 2002, 205 p. [http://imcg.wr.usgs.gov/dem.html]
Reporters Donald Grybeck (U.S. Geological Survey)
Last report date 5/5/2005