Ophir Quadrangle References Avalon Development Corp., 1998, Colorado Creek project, Ophir and Medfra quadrangles, southwest Alaska: report prepared for NovaGold Resources Inc., 9 p. Barker, J.C., 1996, Geologic evaluation of the Colorado Creek prospect area, Alaska: Summary Report 1996, prepared for Placer Dome Exploration, San Franscisco, California, 73 p. Berg, H.C., and Cobb, E.H., 1967, Metalliferous lode deposits of Alaska: U.S. Geological Survey Bulletin 1246, 254 p. Brooks, A.H., 1908, The mining industry in 1907: U.S. Geological Survey Bulletin 345, p. 30-53. Brooks, A.H., 1910, The mining industry in 1909: U.S. Geological Survey Bulletin 442, p. 20-46. Brooks, A.H., 1912, The mining industry in 1911: U.S. Geological Survey Bulletin 520, p. 17-44. Brooks, A.H., 1914, The Alaskan mining industry in 1913: U.S. Geological Survey Bulletin 592, p. 45-74. Brooks, A.H., 1915, The Alaskan mining industry in 1914: U.S. Geological Survey Bulletin 622, p. 15-68. Brooks, A.H., 1916, The Alaskan mining industry in 1915: U.S. Geological Survey Bulletin 642, p. 16-71. Brooks, A.H., 1918, The Alaskan mining industry in 1916: U.S. Geological Survey Bulletin 662, p. 11-62. Brooks, A.H., 1919, Alaska’s mineral supplies: U.S. Geological Survey Bulletin 666, p. 89-102. Brooks, A.H., 1922, The Alaskan mining industry in 1920: U.S. Geological Survey Bulletin 722, p. 7-67. Brooks, A.H., 1923, The Alaskan mining industry in 1921: U.S. Geological Survey Bulletin 739, p. 1-44. Brooks, A.H., 1925, Alaska’s mineral resources and production, 1923: U.S. Geological Survey Bulletin 773, p. 3-52. Brooks, A.H., and Capps, S.R., 1924, The Alaskan mining industry in 1922: U.S. Geological Survey Bulletin 755, p. 3-49. Brooks, A.H., and Martin, G.C., 1921, The Alaskan mining industry in 1919: U.S. Geological Survey Bulletin 714, p. 59-95. Bundtzen, T.K., Cox, B.C., and Veach, N.C., 1987, Heavy mineral provenance studies in the Iditarod and Innoko districts, western Alaska: Alaska Division of Geological and Geophysical Surveys, Public-data File 87-16, 25 p. Bundtzen, T.K., Green, C.B., Peterson, R.J., and Seward, A.F., 1988, Alaska’s mineral industry 1987: Alaska Division of Geological and Geophysical Surveys Special Report SR 41, 69 p. Bundtzen, T.K., and Miller, M.L., 1997, Precious metals associated with Late Cretaceous –Early Tertiary igneous rocks of southwestern Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Economic Geology Monograph 9, Mineral Deposits of Alaska: Economic Geology Publishing Company, p. 247-286. Bundtzen, T.K., Swainbank, R.C., Clough, A.H., Henning, M.W., and Charlie, K.M., 1996, Alaska’s mineral industry 1995: Alaska Division of Geological and Geophysical Surveys Special Report SR 50, 71 p. Bundtzen, T.K., Swainbank, R.C., Clough, A.H., Henning, M.W., and Hansen, E.W., 1994, Alaska’s mineral industry 1993: Alaska Division of Geological and Geophysical Surveys Special Report SR 48, 84 p. Bundtzen, T.K., Swainbank, R.C., Deagen, J.R., and Moore, J.L., 1990, Alaska’s mineral industry 1989: Alaska Division of Geological and Geophysical Surveys Special Report SR 44, 100 p. Bundtzen, T.K., Swainbank, R.C., Deagen, J.R., and Moore, J.L., 1991, Alaska’s mineral industry 1990: Alaska Division of Geological and Geophysical Surveys Special Report SR 45, 100 p. Bundtzen, T.K., Swainbank, R.C., Wood, J.E., and Clough, A.H., 1992, Alaska’s mineral industry 1991: Alaska Division of Geological and Geophysical Surveys Special Report SR 46, 89 p. Chapman, R.M., Patton, W.W., and Moll, E.J., 1985, Reconnaissance geologic map of the Ophir quadrangle, Alaska: U.S. Geological Survey Open-File Report OFR 85-203, 1 sheet, 1:250,000 scale. Cobb, E.H., 1972, Metallic mineral resources map of the Ophir quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-367, 1 sheet, scale 1:250,000. Cobb, E.H., 1973, Placer deposits of Alaska: U.S. Geological Survey Bulletin 1374, 213 p. Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Iditarod and Ophir quadrangles, Alaska: U.S. Geological Survey Open-File Report OFR 76-576, 101 p. Cox, D.P., and Singer, D.A., 1986, Mineral deposit models: U.S. Geological Survey Bulletin 1693, 379 p. Dashevsky, S.S., 2000, Colorado Creek project (Au) Innoko district, Alaska: unpublished report for Rosander Mining Company, 7 p. Dashevsky, S.S., 2000, Ganes Creek project (Au) Ophir district, Alaska: unpublished report for Clark-Wiltz Mining Inc., 7 p. Dashevsky, S.S., 2001, Tolstoi project (Au, Pt) Innoko district, Alaska: unpublished report for 3D Mining, Inc., 8 p. Duncan, R.G., 1999, Colorado Creek project, Alaska, interim report: unpublished report for Poseidon Minerals Ltd., 22 p. Eakin, H.M., 1913, Gold placers of the Innoko-Iditarod region: U.S. Geological Survey Bulletin 542, p. 293-303. Eakin, H.M., 1914, The Iditarod-Ruby region, Alaska: U.S. Geological Survey Bulletin 578, 45 p. Foley, J.Y., Burns, L.E., Schneider, C.L., and Forbes, R.B., 1989, Preliminary report of platinum-group element occurrences in Alaska: Alaska Division of Geological and Geophysical Surveys Public-data File 89-20, 33 p., 1 sheet, scale 1:2,500,000. Fowler, H.M., 1950, Report of investigations in the Innoko, Nulato, Bethel, Goodnews Bay, Wasilla, Chisana, and Ketchikan mining districts: Alaska Territorial Department of Mines Itinerary Reports 195-7, 13 p. Green, C.B., Bundtzen, T.K., Peterson, R.J., Seward, A.F., Deagen, J.R., and Burton, J.E., 1989, Alaska’s mineral industry 1988: Alaska Division of Geological and Geophysical Surveys Special Report SR 43, 79 p. Harrington, G.L., 1919, The gold and platinum placers of the Tolstoi district: U.S. Geological Survey Bulletin 692, p. 339-351. Hawley, C.C., and Buxton, C.L., 1991, Boob Creek placer prospect, western Alaska: unpublished company report, Hawley Resource Group, 13 p. Holzheimer, F.W., 1926, The quicksilver resources of the Kuskokwim River region: Alaska Territorial Department of Mines Miscellaneous Report MR 73-2, 41 p. Holzheimer, F.W., 1926, Placer operations, Innoko district: Alaska Territorial Department of Mines Miscellaneous Reports MR 64-1, 16 p. Holzheimer, F.W., 1926, The future of mining between Ruby and the Kuskokwim River: Alaska Territorial Department of Mines Miscellaneous Report 56-1, 11 p. Holzheimer, F.W., 1926, Miscellaneous notes on the Kuskokwim River district, Alaska: Alaska Territorial Department of Mines Miscellaneous Report MR 194-2, 7 p. Jasper, M.W., 1959, Warren Magnuson claims on Ganes Creek: Alaska Territorial Department of Mines, Property Examination PE 64-1, 11 p., 1 map, scale 1:1200. Joesting, H.R., 1942, Strategic mineral occurrences in interior Alaska: Alaska Department of Mines Pamphlet 1, 46 p. Maddren, A.G., 1909, Gold placers of the Innoko district: U.S. Geological Survey Bulletin 379, p. 238-266. Maddren, A.G., 1910, The Innoko gold-placer district, Alaska, with accounts of the central Kuskokwim Valley and the Ruby Creek and Gold Hill placers: U.S. Geological Survey Bulletin 410, 87 p. Maddren, A.G., 1911, Gold placer mining developments in the Innoko-Iditarod region: U.S. Geological Survey Bulletin 480, p. 236-270. Malone, K., 1962, Mercury occurrences in Alaska: U.S. Bureau of Mines Information Circular 8131, 57 p. Malone, K., 1965, Mercury in Alaska, in U.S. Bureau of Mines, Mercury potential of the United States: U.S. Bureau of Mines Information Circular 8252, p. 31-59. Martin, G.C., 1919, The Alaskan mining industry in 1917: U.S. Geological Survey Bulletin 692, p. 11-42. Martin, G.C., 1920, The Alaska mining industry in 1918: U.S. Geological Survey Bulletin 712, p. 11-52. McGinnis, M.F., McCoy, M.E., Nerup, M.R., and Barnett, D., 1997, Colorado Creek project Alaska, 1997 summary report: unpublished Placer Dome Exploration Inc. report, 37 p. Mertie, J.B. Jr., 1923, The occurrence of metalliferous deposits in the Yukon and Kuskokwim regions: U.S. Geological Survey Bulletin 739, p. 149-165. Mertie, J.B. Jr., 1936, Mineral deposits of the Ruby-Kuskokwim region, Alaska: U.S. Geological Survey Bulletin 864-C, p. 115-255. Mertie, J.B. Jr., 1969, Economic geology of the platinum minerals: U.S. Geological Survey Professional Paper 630, 120 p. Mertie, J.B. Jr., and Harrington, G.L., 1916, Mineral resources of the Ruby-Kuskokwim region: U.S. Geological Survey Bulletin 642, p. 223-266. Mertie, J.B. Jr., and Harrington, G.L., 1924, The Ruby-Kuskokwim region, Alaska: U.S. Geological Survey Bulletin 754, 129 p. Metz, P.A., and Hawkins, D.B., 1981, A summary of gold fineness values from Alaska placer deposits: University of Alaska, Mineral Industry Research Laboratory Report 45, 63 p. Moffit, F.H., 1927, Mineral industry of Alaska in 1925: U.S. Geological Survey Bulletin 792, p. 1-39. Roberts, W.S., 1984, Economic potential for chromium, platinum, and palladium in the Mount Hurst ultramafics, west-central Alaska: U.S. Bureau of Mines Open-File Report OFR 84-22, 52 p. Roehm, J.C., 1937, Summary report of mining investigations in the Innoko, Mt. McKinley, Knik, and Talkeetna precincts: Alaska Territorial Department of Mines Itinerary Reports IR 195-17, 16 p. Roehm, J.C., 1938, Summary report of mining investigations in the Cache Creek, Innoko, Aniak-Tulasak, and Goodnews Bay districts: Alaska Territorial Department of Mines Itinerary Reports IR 195-22, 8 p. Roehm, J.C., 1940, Summary report of miscellaneous investigations in the Bethel, Otter, Innoko, and Kenai precincts: Alaska Territorial Department of Mines Itinerary Reports IR 195-29, 15 p. Roehm, J.C., 1946, Report of miscellaneous investigations in the Innoko and Mt. McKinley precincts: Alaska Territorial Department of Mines Itinerary Reports IR 195-40. Saunders, R.H., 1960, Itinerary report on a trip to the Flat and Ophir Districts: Alaska Territorial Department of Mines Itinerary Reports IR 64-2, 15 p. Smith, P.S., 1926, Mineral industry of Alaska in 1924: U.S. Geological Survey Bulletin 783, p. 1-30. Smith, P.S., 1929, Mineral industry of Alaska in 1926: U.S. Geological Survey Bulletin 797, p. 1-50. Smith, P.S., 1930, Mineral industry of Alaska in 1928: U.S. Geological Survey Bulletin 810, p. 1-64. Smith, P.S., 1930, Mineral industry of Alaska in 1929: U.S. Geological Survey Bulletin 813, p. 1-72. Smith, P.S., 1932, Mineral industry of Alaska in 1929: U.S. Geological Survey Bulletin 824, p. 1-81. Smith, P.S., 1933, Mineral industry of Alaska in 1930: U.S. Geological Survey Bulletin 836, p. 1-83. Smith, P.S., 1933, Mineral industry of Alaska in 1931: U.S. Geological Survey Bulletin 844-A, p. 1-82. Smith, P.S., 1934, Mineral industry of Alaska in 1932: U.S. Geological Survey Bulletin 857-A, p. 1-91. Smith, P.S., 1934, Mineral industry of Alaska in 1933: U.S. Geological Survey Bulletin 864-A, p. 1-94. Smith, P.S., 1936, Mineral industry of Alaska in 1934: U.S. Geological Survey Bulletin 868-A, p. 1-91. Smith, P.S., 1937, Mineral industry of Alaska in 1935: U.S. Geological Survey Bulletin 880-A, p. 1-95. Smith, P.S., 1938, Mineral industry of Alaska in 1936: U.S. Geological Survey Bulletin 897-A, p. 1-107. Smith, P.S., 1939, Mineral industry of Alaska in 1937: U.S. Geological Survey Bulletin 910-A, p. 1-113. Smith, P.S., 1939, Mineral industry of Alaska in 1938: U.S. Geological Survey Bulletin 917-A, p. 1-113. Smith, P.S., 1941, Fineness of gold from Alaskan placers: U.S. Geological Survey Bulletin 910-C, p. 147-267. 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. Smith, S.S., 1917, The mining industry in the Territory of Alaska during the calendar year 1915: U.S. Bureau of Mines Bulletin 142, 66 p. 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. Swainbank, R.C., Bundtzen, T.K., Clough, A.H., Hansen, E.W., and Nelson, M.G., 1993, Alaska’s mineral industry 1992: Alaska Division of Geological and Geophysical Surveys Special Report SR 47, 80 p. Swainbank, R.C., Bundtzen, T.K., Clough, A.H., Henning, M.W., and Hansen, E.W., 1995, Alaska’ mineral industry 1994: Alaska Division of Geological and Geophysical Surveys Special Report SR 49, 77 p. Swainbank, R.C., Clautice, K.C., and Nauman, J.L., 1998, Alaska’s mineral industry 1997: Alaska Division of Geological and Geophysical Surveys Special Report SR 52, 65 p. Swainbank, R.C., Szumigala, D.J., Henning, M.W., and Pillifant, F.M., 2000, Alaska’s mineral industry 1999: Alaska Division of Geological and Geophysical Surveys Special Report SR 54, 73 p. Szumigala, D.J., and Swainbank, R.C., 1999, Alaska’s mineral industry 1998: Alaska Division of Geological and Geophysical Surveys Special Report SR 53, 71 p. Thorson, R.M., and Guthrie, R.D., 1992, Stratigraphy of Colorado Creek mammoth locality, Alaska: Quaternary Research, vol. 37, p. 214-228. White, M.G., and Killeen, P.L., 1953, Reconnaissance for radioactive deposits in the lower Yukon-Kuskokwim highlands region, Alaska: U.S. Geological Survey Circular 255, 18 p. Williams, J.A., 1950, Mining operations in the Innoko Recording Precinct, fourth division: Territory of Alaska Department of Mines Memorandum Report MR 194-13, 6 p.