|Quadrangle map, 1:250,000-scale||SO|
|Quadrangle map, 1:63,360-scale||D-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Elkhorn Creek is a southwest tributary to the Niukluk River. The mouth of Elkhorn Creek is 0.5 miles upstream of the mouth of Camp Creek (SO057), which is about 9 miles upriver from Council. About the lower mile, between elevations of 125 and 200 feet, have been placer mined. This is locality 114 of Cobb (1972, MF 445; 1978, OF 78-181).|
Geologic descriptionPlacer mining has taken place for about a mile along the lower part of Elkhorn Creek. The drainage is incised into a terrace along the Niukluk River. Creek gravels were 2.5 feet thick near the mouth and bench deposit at the mouth consisted of 4 feet of cross-bedded sand and gravel that are overlain by 6 feet of clay, muck, and vegetation. The pay streak was apparently spotty but some coarse gold was recovered; one nugget was worth $55 (about 2.75 ounces). Quartz was commonly attached to the coarser gold and one nugget was embedded in schist (Brooks and others, 1901). Bedrock in the area is probably part of a lower Paleozoic metasedimentary assemblage (Till and others, 1986).
|Geologic map unit||(-163.956620910266, 64.9302672929194)|
|Mineral deposit model||Placer Au-PGE (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Workings or exploration||Small-scale surface mining took place before WW I and a dredge operated between 1914 and 1918 (Cobb, 1978, OF 78-181). The lower mile of the creek has probably been extensively worked.|
|Indication of production||Yes; small|
|Production notes||Production was $30,000 (about 1,450 ounces) in 1900 (Brooks and others, 1901) and totaled about $120,000 (about 6,000 ounces) by 1906 (Collier and others, 1908). Total production is probably more than 10,000 ounces (Cobb, 1978, OF 78-181).|
Brooks, A.H., Richardson, G.B., Collier, A.J., and W.C. Mendenhall, 1901, A reconnaissance in the Cape Nome and adjacent gold fields of Seward Peninsula, Alaska, in 1900: U.S. Geological Survey Special Publication, p. 1-185, maps.
Cobb, E.H., 1972, Metallic mineral resources map of the Solomon quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-445, 1 sheet, scale 1:250,000.
Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Solomon quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-181, 185 p.
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.
|Reporters||Travis L. Hudson (Applied Geology)|
|Last report date||8/19/1999|