|Quadrangle map, 1:250,000-scale||RB|
|Quadrangle map, 1:63,360-scale||B-5|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Straight Creek is a 2 1/2-mile-long, east-flowing tributary of Birch Creek, a southeast-flowing tributary of Flint Creek, which subsequently flows northeast into the Sulatna River. The coordinates given correspond to location 6 of Cobb (1972 [MF405]) and mark the center of placer mining ground. The site lies in section 12, T. 12 S., R. 17 E. of the Kateel River meridian. The location is accurate.|
The hill drained by Straight Creek is composed of schist intruded by granitic dikes (White and Stevens, 1953; Eberlein and others, 1977). The contact between granite and schist is located near the mouth of the creek.
Gold and cassiterite were mined near the mouth of Straight Creek from a bench deposit of Birch Creek that is cut by Straight Creek (Chapman and others, 1963).A placer mine was first established at Straight Creek in 1916 (Smith, 1917 [BMB153]). Straight Creek was mined until 1920, although more recent prospecting may have occurred along the creek (Eberlein and others, 1977).
|Geologic map unit||(-155.385009416114, 64.459057923012)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary?|
|Workings or exploration||Straight Creek was mined from 1916 to 1920 (Eberlein and others, 1977).|
|Indication of production||Yes; small|
Chapman, R.M., Coats, R.R., and Payne, T.G., 1963, Placer tin deposits in central Alaska: U.S. Geological Survey Open-File Report 239, 53 p.
Cobb, E.H., 1972, Metallic mineral resources map of the Ruby quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-405, 1 sheet, scale 1:250,000.
Cobb, E.H., and Chapman, R.M., 1981, Mineral occurrences (other than mineral fuels and construction materials) in the Kantishna River and Ruby quadrangles, Alaska: U.S. Geological Survey Open-File Report 81-170, 94 p.
Eberlein, G.D., Chapman, R.M., Foster, H.L., and Gassaway, J.S., 1977, Map and table describing known metalliferous and selected nonmetalliferous mineral deposits in central Alaska: U.S. Geological Survey Open-File Report 77-168-D, 132 p., 1 sheet, scale 1:1,000,000.
Smith, S.S., 1917, The mining industry in the Territory of Alaska during the calendar year 1916: U.S. Bureau of Mines Bulletin 153, 89 p.
|Reporters||C.E. Cameron (Alaska Division of Geological and Geophysical Surveys)|
|Last report date||3/22/2000|