|Quadrangle map, 1:250,000-scale||FB|
|Quadrangle map, 1:63,360-scale||A-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Placer claims have been staked over a distance of about 20 miles along the Totatlanika River from California Creek to just above the McCuen Gulch. Mining in the early 1900's took place in the middle of the basin, between the head of Murphy Canyon and a point about half a mile above the mouth of Homestake Creek (Maddren, 1918, p. 388). The coordinates given are the approximate center of the portion of the river that was mined (see sec. 34, T. 9 S., R. 5 W., Fairbanks Meridian).|
The discovery of placer gold in the Totatlanika valley took place at the mouth of McCuen Gulch in 1905 (Maddren, 1918, p. 387-388). Productive mining in the early 1900s took place in the middle of the basin between the head of Murphy Canyon and a point about half a mile above the mouth of Homestake Creek (Maddren, 1918, p. 388). Gold colors could be obtained at almost any point in the stream gravels along upper Totatlanika River from its junction with California Creek to a point above McCuen Gulch, a distance of about 20 miles (Maddren, 1918, p. 388). Gold has been found in gravel, on bedrock, and in bedrock crevices (Prindle, 1907). The gold varies from 828 to 863 fine (Glover, 1950). In the late 1980s and early 1990s, fine-grained gold was recovered by a modern placer mine (Bundtzen and others, 1991, p. 34).Above and at the mouth of Homestake Creek, the Totatlanika River is underlain by the Keevy Peak Formation, which consists of quartz-sericite schist, quartzite, purple and green schist and slate, arkosic gritlike schist, marble, and calcareous schist. The river then flows through the Moose Creek Member of the Totatlanika Schist, which consists of yellow quartz-orthoclase gneiss and schist. The remainder of the river is predominantly underlain by gray quartz-orthoclase gneiss and augen gneiss of the California Creek Member of the Totatlanika Schist (Wahrhaftig, 1970 [GQ-810]).
|Geologic map unit||(-148.500345903103, 64.0925489986948)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary placer.|
|Workings or exploration||Mining began in 1905 and continued intermittently until 1940 (Cobb, 1976 [OFR 76-662, p. 149]). In the late 1980s and early 1990s, fine-grained gold was recovered by a modern placer mine (Bundtzen and others, 1991, p. 34).|
|Indication of production||Yes; medium|
|Production notes||There is no record of the amount of production from mining that took place intermittently from 1905 to 1940 or from the recent activity in the 1980s and 1990s.|
Brooks, A.H., 1911, The Mount McKinley region, Alaska, with descriptions of the igneous rocks and of the Bonnifield and Kantishna districts by L.M. Prindle: U.S. Geological Survey Professional Paper 70, 234 p.
Brooks, A.H., and Capps, S.R., 1924, The Alaska mining industry in 1922: U.S. Geological Survey Bulletin 755-A, p. 1-56.
Bundtzen, T. K., Swainbank, R. C., Wood, J. E., and Clough, A. H., 1991, Alaska's mineral industry 1991: Alaska Division of Geological and Geophysical Surveys Special Report 46, 89 p.
Capps, S.R., 1911, Mineral resources of the Bonnifield region: U.S. Geological Survey Bulletin 480-H, p. 218-235.
Capps, S.R., 1912, The Bonnifield region, Alaska: U.S. Geological Survey Bulletin 501, 64 p., 1 sheet, scale 1:250,000.
Capps, S.R., 1924, Geology and mineral resources of the region traversed by the Alaska Railroad: U.S. Geological Survey Bulletin 755-C, p. 73-150.
Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Fairbanks quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-662, 174 p.
Glover, A.E., 1950, Placer gold fineness: Alaska Territorial Department of Mines Miscellaneous Report 195-1, 38 p.
Maddren, A.G., 1918, Gold placers near the Nenana coal field: U.S. Geological Survey Bulletin 662-G, p. 363-402.
Moffit, F.H., 1933, Mining developments in the Tatlanika and Totatlanika basins: U.S. Geological Survey Bulletin 836-D, p. 339-345.
Prindle, L.M., 1907, The Bonnifield and Kantishna regions, Alaska: U.S. Geological Survey Bulletin 314-L, p. 205-226.
Smith, P.S., 1939, Mineral industry of Alaska in 1938: U.S. Geological Survey Bulletin 917-A, p. 1-113.
Smith, P.S., 1941, Mineral industry of Alaska in 1939: U.S. Geological Survey Bulletin 926-A, p. 1-106.
Smith, P.S., 1942, Mineral industry of Alaska in 1940: U.S. Geological Survey Bulletin 933-A, p. 1-102.
|Reporters||J.R. Guidetti Schaefer and C.J. Freeman (Avalon Development Corporation)|
|Last report date||7/31/2001|