|Quadrangle map, 1:250,000-scale||VA|
|Quadrangle map, 1:63,360-scale||B-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This small placer mine is on Fourth of July Creek, about 1.2 miles upstream from its mouth on Slate Creek. It is at an elevation of about 2,150 feet in the SW1/4 section 34, T. 4 S., R. 1 E., of the Copper River Meridian. This is locality 88 of Cobb and Matson (1972) and locality 68 of Winkler and others (1981 [OFR 80-892-B]).|
Geologic descriptionA small amount of placer gold was recovered from Fourth of July Creek during exploration work in 1929 and 1930 (Smith, 1932, 1933). Bedrock in the area is greenschist-facies metaflysch of the Late Cretaceous Valdez Group (Winkler and others, 1981 [OFR 80-892-A]). Gold-bearing quartz veins are widespread through the Valdez Group in the southern Valdez quadrangle (Cobb and Matson, 1972).
|Geologic map unit||(-145.216092399628, 61.477506639465)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Holocene.|
|Workings or exploration||Small-scale surface prospecting and mining occurred on Fourth of July Creek in 1929 and 1930 (Smith, 1932, 1933).|
|Indication of production||Yes; small|
Cobb, E.H., and Matson, N.A., Jr., 1972, Metallic mineral resources map of the Valdez quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-438, 1 sheet, scale 1:250,000.
Smith, P.S., 1932, Mineral industry of Alaska in 1929, in Smith, P.S., and others Mineral resources of Alaska, report on progress of investigations in 1929: U.S. Geological Survey Bulletin 824-A, p. 1-81.
Smith, P.S., 1933, Mineral industry of Alaska in 1930: U.S. Geological Survey Bulletin 836-A, p. 1-83.
Winkler, G.R., Miller, R.J., MacKevett, E.M., Jr., and Holloway, C.D., 1981, Map and summary table describing mineral deposits in the Valdez quadrangle, southern Alaska: U.S. Geological Survey Open-File Report 80-892-B, 2 sheets, scale l:250,000.
|Reporters||Travis L. Hudson|
|Last report date||12/14/2001|