|Quadrangle map, 1:250,000-scale||CY|
|Quadrangle map, 1:63,360-scale||A-5|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Sawyer Creek, not named on the current (1956, revised 1974) topographic map of the Charley River quadrangle, is a north-flowing tributary to Sam Creek, about 10 miles from its confluence with the Yukon River. Sawyer Gulch is location 6 of Cobb (1972 [MF-390]). The placer mining was in section 19, T. 5 N., R. 23 E., of the Fairbanks Meridian. The location is accurate within one mile.|
Geologic descriptionA small placer deposit was reported in the early 1900s on a tributary, presumably Sawyer Creek, of Sam Creek (CY027). The gold, as in other nearby placer deposits, is likely derived from the Cretaceous to Tertiary conglomerate that underlies the creek (Mertie, 1942; Dover and Miyaoka, 1988).
|Geologic map unit||(-143.092385186806, 65.2396678827161)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Workings or exploration||A small placer deposit was reported in the early 1900s on Sawyer Creek. The general area was mined and explored extensively prior to World War II (Mertie, 1942).|
|Indication of production||Yes; small|
Additional commentsThis site is within the Yukon-Charley Rivers National Preserve.
Brooks, A.H., 1907, The Alaskan mining industry in 1906: U.S. Geological Survey Bulletin 314-A, p. 19-39.
Cobb, E.H., 1972, Metallic mineral resources map of the Charley River quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-390, 1 sheet, scale 1:250,000.
Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Charley River and Coleen quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-632, 45 p.
Dover, J.A., and Miyaoka, R.T., 1988, Reinterpreted geologic map and fossil data, Charley River quadrangle, east-central Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2004, 2 sheets, scale 1:250,000.
|Reporters||C.E. Cameron (ADGGS)|
|Last report date||4/7/2000|