|Quadrangle map, 1:250,000-scale||CI|
|Quadrangle map, 1:63,360-scale||B-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The location is the approximate midreach of Squaw creek. Squaw Creek is a tributary of Harrison Creek, which itself is a tributary of Birch Creek. Eberlein and others (1977) reported 'recent' placer mining at the junction of Harrison Creek and Squaw Creek.|
Squaw Creek is underlain by quartzose porphyroblastic-albite-chlorite schist and chlorite schist - part of the Lower Schist unit described by Wiltse and others (1995).The steep gradient of Squaw Creek results in a narrow flood plain, less than 30 meters wide, with coarse gravel and boulders as much as 1 meter in diameter (Yeend, 1991, p. 29). The coarse gold recovered included some one-ounce nuggets. Fine gold was rare, having been flushed into Harrison Creek where the gradient is lower. Values of 0.0125 to 0.0375 ounces per cubic yard were being recovered in 1981, just below the upper forks of Squaw Creek. Unmined gravel remains only in the uppermost Squaw Creek drainage where the gravel is very coarse (Yeend, 1991).
|Geologic map unit||(-144.911437977166, 65.3876332304148)|
|Mineral deposit model||Placer gold deposit (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Workings or exploration||Gold was discovered on Squaw Creek in 1894 (Brooks and others, 1907), but information about early mining on the creek has not been found. Considerable mining occurred on the creek in the late 1970s and early 1980s (Yeend, 1991).|
|Indication of production||Yes; small|
|Production notes||Values of 0.0125 to 0.0375 ounces per cubic yard were being recovered in 1981, just below the upper forks of Squaw Creek (Yeend, 1991).|
Additional commentsSquaw Creek was originally named Squaw Gulch on early maps (Spurr, 1898, Dunham, 1898).
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 Circle quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-391, 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 Circle quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-633, 72 p.
Dunham, S.C., 1898, The Alaskan gold fields and the opportunities they offer for capitol and labor: U.S. Department of Labor Bulletin No. 16, p. 297-425.
Menzie, W.D., Foster, H.L., Tripp, R.B., and Yeend, W.E., 1983, Mineral resource assessment of the Circle quadrangle, Alaska: U.S. Geological Survey Open-File Report 83-170-B, 61 p., 1 sheet, 1:250,000.
Mertie, J.B., Jr., 1932, Mining in the Circle district: U.S. Geological Survey Bulletin 824-D, p. 155-172.
Prindle, L.M., 1913, A geologic reconnaissance of the Circle quadrangle, Alaska: U.S. Geological Survey Bulletin 538, 82 p.
Spurr, J.E., and Goodrich, H.B., 1898, Geology of the Yukon gold district, Alaska, with an introductory chapter on the history and present condition of the district by H.B. Goodrich in Walcott, C.D., editor, Eighteenth annual report of the United States Geological Survey to the Secretary of the Interior, 1896-1897: Part III - Economic geology: U.S. Geological Survey 18th Annual Report, Part 3, p. 87-392.
Wiltse, M.A., Reger, R.D., Newberry, R.J, Pessel, G.H., Pinney, D.S., Robinson, M.S., and Solie, D.N., 1995, Bedrock geologic map of the Circle mining district, Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigations 95-2B, 1 sheet, scale 1:63,360.
|Reporters||C.J. Freeman, J.R. Guidetti Schaefer, A.S. Clements (Avalon Development Corporation)|
|Last report date||9/14/1998|