|Quadrangle map, 1:250,000-scale||CH|
|Quadrangle map, 1:63,360-scale||C-6|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Emery Creek, a north-flowing tributary of the Bettles River, is about 2 miles northwest of Glacier Lake The creek is labeled Emery Creek on modern topographic maps but is called Emory Creek in the old reports. The site is on Emery Creek about a mile southwest of the Bettles River where there was mining in 1937. The site is near the southeast corner of section 31, T. 32 N., R. 9 W.|
Geologic descriptionAccording to Maddren (1913), Emory Creek produced about $10,000 in gold (484 ounces) from 1900 to 1909. The gold occurred on bedrock amidst boulders which had to be moved to recover the gold. Reed (1938) saw no evidence of the mining that Maddren reported, but did note prospecting and mining near the junction of Emory Creek and an east-flowing tributary about a mile south of the Bettles River. There was placer mining on the creek from 1993 to 1998 that produced 40 ounces of gold (Kurtak and others, 2002).
|Geologic map unit||(-149.623752024761, 67.5494892349558)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Workings or exploration||Placer mining from 1900 to 1909, in 1936, and from 1993 to 1998.|
|Indication of production||Yes|
|Production notes||Emery Creek produced about $10,000 in gold (about 484 ounces) from 1900 to 1909; perhaps a small amount in the mid-1930s; and 40 ounces from 1993 to 1998.|
Additional commentsMAS No. 0020310050
Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Chandalar and Wiseman quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-340, 205 p.
Cobb, E.H., and Cruz, E.L., 1983, Summaries of data and lists of references to metallic and selected nonmetallic mineral deposits in the Chandalar quadrangle, Alaska: U.S. Geological Survey Open-File Report 83-278, 91 p.
Kurtak, J.M., Klieforth, R.F., Clark, J.M., and Maclean, E.A., 2002, Mineral investigations in the Koyukuk mining district, northern Alaska, 2 vols.: Bureau of Land Management, Alaska Technical Report 50, 845 p.
Maddren, A.G., 1910, The Koyukuk-Chandalar gold region: U.S. Geological Survey Bulletin 442-G, p. 284-315.
Maddren, A.G., 1913, The Koyukuk-Chandalar region, Alaska: U.S. Geological Survey Bulletin 532, 119 p.
|Reporters||J.M. Britton (Anchorage, Alaska); D.J. Grybeck (Contractor, U.S. Geological Survey)|
|Last report date||4/18/2010|