|Quadrangle map, 1:250,000-scale||HE|
|Quadrangle map, 1:63,360-scale||D-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The Gagnon Creek placer gold mine is along Gagnon Creek, a tributary to Healy Creek. Placer workings extend upstream from the mouth of the creek, but most of the activity was from about 0.2 to 0.8 mile from its mouth. The map site is in sec. 9, T. 12 S., R. 6 W., of the Fairbanks Meridian. This is location 65 of Clark and Cobb (1972).|
Geologic descriptionGagnon Creek drains the Tertiary Nenana Gravel, which locally contains gold paleoplacers. The deposit at Gagnon Creek consists of well-sorted auriferous gravels at a depth of up to 5 feet, and having an average thickness of 2 feet. The placer gold in Gagnon Gulch probably results from reworking the Nenana Gravel.
|Geologic map unit||(-148.732320570762, 63.8895457756502)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Workings or exploration||Surface only.|
|Indication of production||Yes; small|
|Production notes||Approximately 194 ounces of gold was mined from 1913 to 1917 (Cobb, 1978 (OFR 78-1062).|
Clark, A.L., and Cobb, E.H., 1972, Metallic mineral resources map of the Healy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-394, 1 sheet, scale 1:250,000.
Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Healy quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-1062, 113 p.
|Reporters||N. Van Wyck (Stevens Exploration Management Corporation)|
|Last report date||4/7/2000|