|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||Drayham Creek is a northwest-flowing tributary of the Charley River. Drayham Creek is approximately 6 miles long. The exact location of placer mining on the creek is not known. Geographic coordinates have been arbitrarily placed at the approximate midpoint of the creek, in section 23, T. 3 N., R. 23 E., of the Fairbanks Meridian. The location is accurate to within 3 miles.|
Some placer mining reportedly has occurred along Drayham Creek, but the exact location, production totals, and dates of mining activity are unknown (Mertie, 1942; Lyle, 1973).The bedrock at the head of Drayham Creek is composed of Paleozoic argillite that is in fault contact with Cretaceous to Tertiary granitic rocks. The stream follows the fault for 2 miles downstream, and then the stream flows north while the fault continues more east-west (Dover and Miyaoka, 1988).
|Geologic map unit||(-143.012360702629, 65.0796629224058)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary?|
|Workings or exploration||Some placer mining and exploration has taken place along the creek.|
|Indication of production||Yes; small|
Additional commentsThis site is within the Yukon-Charley Rivers National Preserve.
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.
Lyle, W.M., 1973, Geologic and mineral evaluation of the Charley River drainage, Alaska: Alaska Division of Geological & Geophysical Surveys Alaska Open-File Report 28, 7 p., 1 sheet, scale 1:250,000.
|Reporters||C.E. Cameron (ADGGS)|
|Last report date||4/7/2000|