|Quadrangle map, 1:250,000-scale||KR|
|Quadrangle map, 1:63,360-scale||C-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This site is a beach located between VABM Rocky Point on the west and Uyak Bay on the east, a distance of approximately 4 1/2 miles (Cobb, 1972, MF 459, locality 4; Cobb, 1973, Bulletin 1374, figure 11, locality 3; MacKevett and Holloway, 1977, locality 4).|
Geologic descriptionBrooks (1912) first reported that a new beach placer had been found near Uyak in the summer of 1911. This is a broad sand and gravel beach, behind which are 60-foot bluffs of glacial gravel and till. Most of the gold was obtained over a distance of 3 3/4 miles, where the best pay occurred near the base of the bluffs on a clay layer which lay 1 to 6 feet below the surface. The pay streak was 12 to 16 inches thick and contained some nuggets valued up to $0.25 (gold price at $20.67). Sluice boxes and rockers were used in the mining and it was said that a person could recover up to $10 worth of gold per day. By 1912 the pay streak was apparently worked out. The immediate source of the gold is thought to be the glacial material eroded from the bluffs. Brooks (1918) reported that a sample collected here contained no detectable platinum.
|Geologic map unit||(-154.122312284831, 57.6492811710094)|
|Mineral deposit model||Gold placer (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary|
|Workings or exploration||The beach deposit was mined by portable sluice boxes and rockers with most of the production taking place in 1911 and 1912.|
|Indication of production||Yes; small|
Brooks, A.H., 1912, The mining industry in 1911, in Brooks, A.H., and others, Mineral resources of Alaska, report on progress of investigations in 1911: U.S. Geological Survey Bulletin 520-A, p. 17-44.
Capps, S.R., 1937, Kodiak and adjacent islands, in Smith, P.S. and others, Mineral resources of Alaska, report on progress of investiagtions in 1935: U.S. Geological Survey Bulletin 880-C, p. 111-184, 1 plate, scale 1:250,000.
Cobb, E.H., 1972, Metallic mineral resources map of the Karluk quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-459, 1 sheet, scale 1:250,000.
Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Afognak, Karluk, Kodiak, and Trinity Islands quadrangles, Alaska: U.S. Geological Survey Open-File Report 79-860, 49 p.
MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.
Maddren, A.G., 1919, The beach placers of the west coast of Kodiak Island, Alaska, in Martin, G.C., and others, Mineral resources of Alaska, 1917: U.S. Geological Survey Bulletin 692-E, p. 299-319.
|Reporters||S.H. Pilcher (Anchorage)|
|Last report date||9/8/1998|