| site                                               | commodities, main  | quad-250 | quad-63360 | latitude | longitude | location                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | commodities, other              | ore minerals                                                                                                                   | gangue minerals                                                           | site type  | site status       | production    | deposit model                                                                                      | geologic description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | workings/exploration                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | additional comments                                                                                                                                                                                                                                            | references                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | ARDF number | reporter(s)                                                                                 | last report date | MRDS number               | age                                                                                                                                                                 | reporter affiliation | deposit model number | alteration                                                                                                                                                                                                                                                                                                         | production notes                                                                                                                  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| Unnamed (near Tyonek)                              | Fe, Ti, Zr         | TY       | A-4        | 61.03    | 151.3     | Ilmenite beach sands occur for several miles along the west side of Cook Inlet south of the village of Old Tyonek in Section 19,  T.11 N., R. 11 W. (U.S. Bureau of Mines, 1998, MAS # 0020840009).  Location approximate within one mile.                                                                                                                                                                                                                                                         | Co, Ta, Th                      | Euxenite, ilmenite, magnetite, zircon                                                                                          |                                                                           | Occurrence | Undetermined      | None          | Placer Ti (Cox and Singer, 1986; model 39c)                                                        | Ilmenite beach sands occur for several miles along the west side of Cook Inlet between the village of Old Tyonek and Shirleyville. Cook (1969, p. 99-105) evaluated this occurrence by concentrating the heavy minerals in a -48 mesh fraction.  He noted potentially valuable minerals to be magnetite,  ilmenite and zircon.  Minor amounts of euxenite, a source of columbium, tantalum and thorium were also noted.  Very limited descriptive information is published on this prospect.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | Very limited descriptive information is published on this prospect.                                                                                                                                                                                            | Cook, D.J., 1969, Heavy minerals in Alaskan beach sand deposits:  University of Alaska, Mineral Industry Research Laboratory Report 20, 114 p.��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | TY001       | Madelyn A. Millholland (Anchorage)                                                          | 6/1/1998         | A106264                   | Quaternary                                                                                                                                                          |                      | 39c                  |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | Cook, 1969                                                      |
| Unnamed (near Cook Inlet Shoals)                   | Fe, Ti             | TY       | A-1        | 61.21    | 150.17    | Offshore mining lease for titanium in Cook Inlet, north of Fire Island (U.S. Bureau of Mines, 1998, MAS # 0020840010).  Location approximate within one mile.                                                                                                                                                                                                                                                                                                                                      |                                 | Ilmenite, magnetite                                                                                                            |                                                                           | Occurrence | Undetermined      | None          | Placer Ti (Cox and Singer, 1986; model 39c)                                                        | This occurence has been reported as an offshore mining lease for titanium in Cook Inlet, north of Fire Island. Cook (1969, p. 89-99) evaluated this occurrence by concentrating the heavy minerals in a -48 mesh fraction.  Concentrates yielded 15.9 pounds of magnetite and 5.2 pounds of ilmenite per cubic yard.   He reported that the amount of heavy minerals was too low to be of economic value at that time.  Very limited descriptive information is published on this occurrence.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | Very limited descriptive information is published on this occurrence.                                                                                                                                                                                          | Cook, D.J., 1969, Heavy minerals in Alaskan beach sand deposits:  University of Alaska, Mineral Industry Research Laboratory Report 20, 114 p.��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | TY002       | Madelyn A. Millholland (Anchorage)                                                          | 6/1/1998         | A106254                   | Quaternary                                                                                                                                                          |                      | 39c                  |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | Cook, 1969                                                      |
| Lewis River                                        | Au                 | TY       | B-3        | 61.43    | 150.84    | MacKevett and Holloway (1977, locality 9) describe mined areas extending three to six miles downstream from the landing strip located near the head of Lewis River on the west side of Mt. Susitna in T. 14, 15 and 16 N., R. 9 W. (U.S. Bureau of Mines, 1998, MAS # 0020840026; Cobb, 1972, MF 385, locality 9; and U.S. Bureau of Mines, 1973).                                                                                                                                                 |                                 | Native gold                                                                                                                    |                                                                           | Mine       | Probably inactive | Yes; small    | Placer gold(Cox and Singer, 1986; model 39a)                                                       | MacKevett and Holloway (1977, locality 9) describe mined areas extending three to six miles downstream from the landing strip located near the head of the Lewis River on the west side of Mt. Susitna.  Stream gravel carry coarse angular gold with attached quartz.  Cobb (1979, OFR 80-86, p. 17-18) reports that gold is probably derived from quartz veins in local Jurassic or Cretaceous granitic bedrock or from reworked Tertiary conglomerate.  Drilling for possible dredging was done in the early 1900's. Placer mining was active mostly before 1918.  Bedrock is 12 to 22 feet below surface.  According to Brooks (1918, p. 45-47), seven small placer operations operated in 1916  in the canyon between upper basin and the flats and produced over $2,000 in gold (worth $18.66 an ounce).  One $2 nugget was found.   An unknown but probably small amount of gold recovered in 1956-57 (Cobb, 1973, B 1374, p. 17).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | Placer mining was active mostly before 1918.  Drilling for possible dredging was done in the early 1900's.  Bedrock is 12 to 22 feet below surface.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |                                                                                                                                                                                                                                                                | Brooks, A.H., 1918, Mineral resources of Alaska, 1916:  U.S. Geological Survey Bulletin 662, 469 p. ��Cobb, E.H., 1972, Metallic mineral resources map of the Tyonek quadrangle, Alaska:  U.S. Geological Survey Miscellaneous Field Studies Map MF-385, 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., 1979, Summary of references to mineral occurrences (other than minerals fuels and construction materials) in the Kenai and Tyonek Quadrangles, Alaska:  U.S. Geological Survey Open-File Report 80-86, 36 p.��MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | TY003       | Madelyn A. Millholland (Anchorage), James Reihle (USGS)                                     | 6/1/1998         | A010584; A010586; A011833 | Quaternary                                                                                                                                                          |                      | 39a                  |                                                                                                                                                                                                                                                                                                                    | According to Brooks (1918, p. 45-47), seven small placer operations operated in 1916  in the canyon between upper basin and the flats and produced over $2,000 in gold (worth $18.66 an ounce).  One $2 nugget was found.    Unknown but probably small amount of gold recovered in 1956-57 (Cobb, 1973, B 1374, p. 17). |                                                                                                                                                                                                                                                                                                                                                                                                                | Cobb, 1973 (B 1374)                                             |
| Theodore River                                     | Au                 | TY       | B-3        | 61.35    | 150.99    | MacKevett and Holloway (1977, locality 10) locate these placer prospects in the Theodore River and tributaries draining the south end of Little Mt. Susitna. Placer occurrences are noted in T.15 and16 N., R.9 and 10 W. for about ten miles along the Theodore River and tributaries to the northeast (U.S. Bureau of Mines, 1998, MAS # 0020840025 and U.S. Bureau of Mines, 1973, localities 25, 55a-e, and 73).  Location is approximated in the mid section of the Theodore River.           |                                 | Native gold                                                                                                                    |                                                                           | Prospects  | Undetermined      | Undetermined. | Placer gold (Cox and Singer, 1986; model 39a)                                                      | Placer prospects; very little descriptive information is available.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Surface workings included prospecting and small scale mining.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |                                                                                                                                                                                                                                                                | MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��U.S. Bureau of Mines, 1973, Alaska 1:250,000-scale quadrangle map overlays showing mineral deposit locations, principal minerals, and number and type of claims:  U.S. Bureau of Mines Open-File Report 20-73, 95 overlays (updated in 1986, 1987).��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | TY004       | Madelyn A. Millholland (Anchorage)                                                          | 6/1/1998         | A106257                   | Quaternary                                                                                                                                                          |                      | 39a                  |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | MacKevett and Holloway, 1977                                    |
| Beluga River                                       | Au                 | TY       | B-4        | 61.31    | 151.29    | This placer prospect is located approximately four and one-half miles down stream from Lower Beluga Lake in the Beluga River in T.14N., R. 11W., Section 17 (U.S. Bureau of Mines, 1998, MAS # 00208400030).  Location is approximate within one mile.                                                                                                                                                                                                                                             |                                 | Native gold                                                                                                                    |                                                                           | Prospect   | Undetermined      | Undetermined. | Placer gold  (Cox and Singer, 1986; model 39a)                                                     | Very limited descriptive information is published on this prospect.  Brooks (1910, p. 42) makes a very general reference to prospecting on the Beluga River, but does not provide a precise location.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | Very limited descriptive information is published on this prospect.  Brooks (1910, p. 42) makes a very general reference to prospecting on the Beluga River, but does not provide a precise location.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                                                                | Brooks, A.H., 1910, Mineral resources of Alaska, report on progress of investigations in 1909: U.S. Geological Survey Bulletin 442, 426 p.��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | TY005       | Madelyn A. Millholland (Anchorage)                                                          | 6/1/1998         | A106268                   | Quaternary                                                                                                                                                          |                      | 39a                  |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                |                                                                 |
| Wolverine Creek                                    | Au                 | TY       | C-3        | 61.59    | 150.83    | MacKevett and Holloway (1977, locality 11) show this placer prospect in T. 17 N., R. 9 W. along a seven mile stretch of the Wolverine Creek drainage between Little Mt. Sustina and Mt.Susitna (U.S. Bureau of Mines, 1998, MAS # 0020840027 and U.S. Bureau of Mines, 1973, locality 54).  Location is approximated at the northern end of the placer occurrence.                                                                                                                                 |                                 | Native gold                                                                                                                    |                                                                           | Prospect   | Undetermined      | Undetermined. | Placer gold(Cox and Singer, 1986; model 39a)                                                       | Placer prospect.  There is no descriptive information published on this prospect.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |                                                                                                                                                                                                                                                                | MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��U.S. Bureau of Mines, 1973, Alaska 1:250,000-scale quadrangle map overlays showing mineral deposit locations, principal minerals, and number and type of claims:  U.S. Bureau of Mines Open-File Report 20-73, 95 overlays (updated in 1986, 1987).��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | TY006       | Madelyn A. Millholland (Anchorage)                                                          | 6/1/1998         | A106250                   | Quaternary                                                                                                                                                          |                      | 39a                  |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | MacKevett and Holloway, 1977                                    |
| Beaver Creek; Upper Sucker Creek                   | Au, Cu             | TY       | C-3        | 61.58    | 150.99    | Alaska Department of Natural Resources unpublished claim records show the location of this prospect in Upper Sucker Creek, Sections 5,7,18 and 19, T. 17 N., R. 9 W. and Sections 11, 12, and 13, T. 17 N., R. 10 W., approximately four miles north of Little Mt. Susitna.  Location given is in the  the northern part of the claim block.                                                                                                                                                       | Fe                              | Chalcopyrite, gold, pyrite, pyrrhotite                                                                                         | Magnetite                                                                 | Prospect   | Active            | None          | Cu skarn; unknown if porphyry-related (Cox and Singer, 1986; models 18a or 18b)                    | A variety of lithologies, including marble, clastic sedimentary rocks, and intrusive and volcanic rocks, have been mapped on the property.  Copper-gold-magnetite occurs as skarns developed in the carbonate-rich rocks (K. Adler, Rev. Michael Hornick, personal communication, 1998).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | Work on the property included mapping; airborne magnetic, ground magnetic and VLF geophysical surveys; rock and stream silt geochemical surveys.  Thick cover precludes meaningful soil sampling surveys.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |                                                                                                                                                                                                                                                                |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | TY007       | Madelyn A. Millholland (Anchorage)                                                          | 6/1/1998         | A106255                   |                                                                                                                                                                     |                      | 18a or 18b           |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | This report                                                     |
| Texas Creek; Beluga Mountain                       | Au                 | TY       | C-3        | 61.73    | 151.09    | MacKevett and Holloway (1997, locality 8) show this placer prospect in Texas Creek in T. 19  N., R. 10 W., Sections 16, 17,and 20 on the northeast side of Beluga Mountain (U.S. Bureau of Mines, 1998, MAS # 0020840018 and Cobb, 1979, MF 385, locality 8).  Location is approximated at the eastern end of the placer where Texas Creek leaves Beluga Mountain.                                                                                                                                 |                                 | Native gold                                                                                                                    |                                                                           | Prospect   | Probably inactive | Undetermined. | Placer gold (Cox and Singer, 1986; model 39a)                                                      | Glacio-fluvial deposits of probably Tertiary age contain fine gold, probably reconcentrated from glacial deposits, although some may be from bedrock sources.  Smith (1934, p. 31-32; 1936, p. 33) reported that gold is found in blue clay false bedrock along stream benches and that the placer is difficult to mine because of numerous glacial boulders.  The gold tenor is low (Cobb,1973, B1374, p. 23).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | Explored by a shallow 200 foot trench cut in 1933.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | Referred to as Beluga Mountain by Smith, 1934.                                                                                                                                                                                                                 | Cobb, E.H., 1972, Metallic mineral resources map of the Tyonek quadrangle, Alaska:  U.S. Geological Survey Miscellaneous Field Studies Map MF-385, 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., 1979, Summary of references to mineral occurrences (other than minerals fuels and construction materials) in the Kenai and Tyonek Quadrangles, Alaska:  U.S. Geological Survey Open-File Report 80-86, 36 p.��MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��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.��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | TY008       | Madelyn A. Millholland (Anchorage), James Riehle (USGS)                                     | 6/1/1998         | A010583; A011828          | Quaternary                                                                                                                                                          |                      | 39a                  |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | Smith, 1934                                                     |
| Unnamed (west of Beluga Mountain)                  | Au                 | TY       | C-4        | 61.7     | 151.28    | MacKevett and Holloway (1977, locality 19) show this placer prospect on three and one half mile stretch of an unnamed creek that drains west side from the top of Beluga Mountain in T. 11 W., R.19 N., Sections 26, 27,28, 32 and 33 (U.S. Bureau of Mines, 1998, MAS# 0020840017 and U.S. Bureau of Mines, 1973, locality 16).  Location is shown at the mid point of the placered portion of the stream.                                                                                        |                                 |                                                                                                                                |                                                                           | Prospect   | Undetermined      | Undetermined. | Placer gold  (Cox and Singer, 1986; model 39a)                                                     | Other than said to be a gold placer, no other information has been published on the propect (MacKevett and Holloway, 1977).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | Other than said to be a gold placer, no other information has been published on the propect (MacKevett and Holloway, 1977).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                                                                                                                                                                | MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��U.S. Bureau of Mines, 1973, Alaska 1:250,000-scale quadrangle map overlays showing mineral deposit locations, principal minerals, and number and type of claims:  U.S. Bureau of Mines Open-File Report 20-73, 95 overlays (updated in 1986, 1987).��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | TY009       | Madelyn A. Millholland (Anchorage)                                                          | 6/1/1998         | A106265                   | Quaternary                                                                                                                                                          |                      | 39a                  |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | MacKevett and Holloway, 1977                                    |
| Friday Creek                                       | Au, Fe, Pt         | TY       | C-5        | 61.69    | 151.5     | MacKevett and Holloway (1977, locality 17) show this placer prospect in Friday Creek just above the confluence with the Talachulitna River in T. 19 N., R. 13 W., Section 30 (U.S. Bureau of Mines, 1973, locality 47).  Location is approximate to within one mile.                                                                                                                                                                                                                               |                                 |                                                                                                                                |                                                                           | Prospect   | Undetermined      | Undetermined. | Placer gold (Cox and Singer, 1986; model 39a)                                                      | Beyond the location of the placer prospect (MacKevett and Holloway, 1977) and the commodities listed in the 1973 U.S. Bureau of Mines report, there is no other information published on this site.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Beyond the location of the placer prospect (MacKevett and Holloway, 1977) and the commodities listed in the 1973 U.S. Bureau of Mines report, there is no other information published on this site.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | No descriptive information is published on this prospect.                                                                                                                                                                                                      | MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��U.S. Bureau of Mines, 1973, Alaska 1:250,000-scale quadrangle map overlays showing mineral deposit locations, principal minerals, and number and type of claims:  U.S. Bureau of Mines Open-File Report 20-73, 95 overlays (updated in 1986, 1987).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | TY010       | Madelyn A. Millholland (Anchorage)                                                          | 6/1/1998         | A106252                   | Quaternary                                                                                                                                                          |                      | 39a                  |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | MacKevett and Holloway, 1977                                    |
| Alder Creek; Upper Friday Creek                    | Au                 | TY       | C-5        | 61.7     | 151.61    | MacKevett and Holloway (1977, locality 16) show these placer prospects in the creeks above a small landing strip at the confluence of Friday and Alder Creeks in T. 19 N., R. 13 W., Sections 17, 18, 19, 20, 21, 27, 33 and 34 (U.S. Bureau of Mines, 1998, MAS # 002840015 and U.S. Bureau of Mines, 1973, over localities 8a, 8b and 61).  Location is given at the confluence of Alder with Friday Creek.  The placers occur upstream from this location .                                     |                                 | Native gold                                                                                                                    |                                                                           | Prospects  | Undetermined      | Undetermined. | Placer gold  (Cox and Singer, 1986; model 39a)                                                     | Other than indentified as a placer by MacKevett and Holloway (1977), no other published information is available.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | Other than indentified as a placer by MacKevett and Holloway (1977), no other published information is available.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                                                                                | MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��U.S. Bureau of Mines, 1973, Alaska 1:250,000-scale quadrangle map overlays showing mineral deposit locations, principal minerals, and number and type of claims:  U.S. Bureau of Mines Open-File Report 20-73, 95 overlays (updated in 1986, 1987).��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | TY011       | Madelyn A. Millholland (Anchorage)                                                          | 6/1/1998         | A106266                   | Quaternary                                                                                                                                                          |                      | 39a                  |                                                                                                                                                                                                                                                                                                                    | Unknown.                                                                                                                                                                                                                                                                                                                 |                                                                                                                                                                                                                                                                                                                                                                                                                | MacKevett and Holloway, 1977                                    |
| Unnamed (near the South Branch of Trimble Glacier) | Mo                 | TY       | C-6        | 61.68    | 152.04    | Prospect is located off the southeast end of hill #4180 along an unnamed creek; one mile east of the south branch of the Trimble Glacier in about the center of the west half of Section 6, T. 18 N., R. 15 W. (U.S. Bureau of Mines, 1998, MAS # 0020840005 and U.S. Bureau of Mines, 1973, locality 49).                                                                                                                                                                                         |                                 | Molybdenite                                                                                                                    |                                                                           | Occurrence | Inactive          | None          | Vein?                                                                                              | No other published information is available for this site.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | Surface prospecting.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                | U.S. Bureau of Mines, 1973, Alaska 1:250,000-scale quadrangle map overlays showing mineral deposit locations, principal minerals, and number and type of claims:  U.S. Bureau of Mines Open-File Report 20-73, 95 overlays (updated in 1986, 1987).��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | TY012       | Madelyn A. Millholland (Anchorage), James Riehle, (USGS)                                    | 6/1/1998         | A010582                   |                                                                                                                                                                     |                      |                      |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | U.S. Bureau of Mines, 1973                                      |
| Miss Molly                                         | Mo, Pb, Zn         | TY       | C-6        | 61.73    | 152.07    | Fernette and Cleveland (1984) locate the Miss Molly prospect on the north side of the Trimble River near the toe of the Trimble Glacier in Section 18, T. 19 N., R. 15 W.  The area is mostly covered by glacial debris and dense vegetation, with good bedrock exposures along the Trimble River and in stream valleys (U.S. Bureau of Mines, 1998, MAS # 0020840031 and U.S. Bureau of Mines, 1973, localites 26 and 46).  Location is known to within 100 yards.                                | F                               | Galena, molybdenite, pyrite, sphalerite                                                                                        | Fluorite, quartz                                                          | Prospect   | Probably inactive | No            | Mo-bearing quartz veins                                                                            | Fernette and Cleveland (1984) described the mineralization at Miss Molly as quartz veins with medium to coarse-grained molybdenite, pyrite, and local fluorite.  Veins are regularly spaced, sub parallel, vary from 2 to 10 cm wide, and are spaced 2 to 10 m apart.  Veins occur in two zones about 545 m long and up to 150 m wide in a leucocratic, equigranular biotite granite stock.  Veins locally fill joints and less commonly shears.  Hydrothermal alteration up to 0.3 m wide to sericite and pyrite, occurs adjacent to veins. Grab and chip samples contain up to 0.38% Mo, 0.16% Zn and 100 ppb Au.  The granite stock intrudes Mesozoic marine sediments (KJs) of the Kahlitna terrane (Fernette and Cleveland, 1984 and Nokleberg and others, 1987).  Reed and Lanphere (1972) report nearby granitic plutons with K-Ar ages of 56-59 m.y. and is probably the same age as the intrusion hosting the veins.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | Exploration work included prospecting, rock chip geochemical sampling.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | The Miss Molly prospect is not a classic stockwork molybdenum- type occurrence.                                                                                                                                                                                | Berg, H.C., and Cobb, E.H., 1967, Metalliferous lode deposits of Alaska:  U.S. Geological Survey Bulletin 1246,  254 p.��Fernette, Gregory, and Cleveland, Gaylord, 1984, Geology of the Miss Molly molybdenum prospect, Tyonek C-6 quadrangle, Alaska, in Short notes on Alaska Geology 1982-82:  Alaska Division of Geological and Geophysical Surveys Professional Report 86, p. 35-41.��Hollister, V.F., 1978, Geology of the porphyry copper deposits of the Western Hemisphere: Society of Mining Engineering, American Institute of Mining, Metallurgy, and Petroleum Engineers Inc., 218 p.��MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��Nokleberg, W.J., Bundtzen, T.K., Berg, H.C., Brew, D.A., Grybeck, D.J., Robinson, M.S., Smith, T.E., and Yeend, W., 1987, Significant metalliferous lode deposits and placer districts of Alaska: U.S. Geological Survey Bulletin 1786, 104 p., 2 plates, scale 1:5,000,000.��Reed, B.L., and Lanphere, M.A., 1972, Generalized geologic map of the Alaska-Aleutian range batholith showing potassium-argon ages of the plutonic rocks:  U.S. Geological Survey Miscellaneous Field Studies Map MF-372, 2 sheets, scale 1:1,000,000.��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.htm                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | TY013       | Madelyn A. Millholland (Anchorage), James Riehle (USGS)                                     | 6/1/1998         | A106253                   | Possibly related to dated Tertiary (59 - 56 m.y.) intrusions nearby. (Reed and Lanphere, 1972)                                                                      |                      |                      | Quartz, sericite, clay, alunite? (Fernette and Cleveland, 1984).                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                                                                                                                          | Moderate size and grade (Fernette and Cleveland, 1984).                                                                                                                                                                                                                                                                                                                                                        | Fernette and Cleveland, 1984                                    |
| Unnamed                                            | Mo                 | TY       | D-6        | 61.77    | 152.2     | The occurrence is  located near the toe of a hanging glacier on the ridge between the Hayes and Trimble Glaciers at the northwest corner of Section 4, T. 19 N., R. 16 W.  The location of this occurrence is approximated within a one mile radius from U.S. Bureau of Mines, 1998 (MAS # 0020840003) and U.S. Bureau of Mines, 1973 (locality 44).                                                                                                                                               |                                 | Molybdenite                                                                                                                    |                                                                           | Occurrence | Probably inactive | No            | Mo-bearing veins and disseminations?                                                               | No published descriptive information is available.  Given the proximity to the Miss Molly prospect, ARDF TY0013, mineralization could be of similar style and tenor.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | Surface prospecting.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                | U.S. Bureau of Mines, 1973, Alaska 1:250,000-scale quadrangle map overlays showing mineral deposit locations, principal minerals, and number and type of claims:  U.S. Bureau of Mines Open-File Report 20-73, 95 overlays (updated in 1986, 1987).��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | TY014       | Madelyn A. Millholland (Anchorage), James Riehle (USGS)                                     | 6/1/1998         | A011832                   |                                                                                                                                                                     |                      |                      |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | U.S. Bureau of Mines, 1998                                      |
| Unnamed (near Hayes Glacier)                       | Au, Mo, Pb         | TY       | D-7        | 61.76    | 152.26    | Berg and Cobb (1967, locality 2) show this prospect on the south side of the Hayes Glacier approximately 8 miles southwest of the confluence of the Hayes and Trimble Rivers in Section 1, T.19 N. R. 17 W. (U.S. Bureau of Mines, 1998, MAS # 0020840042; MacKevett and Holloway, 1977, locality 23; Cobb, 1972, OFR 80-86, p. 28; Cobb, 1972, MF 385, locality 6; and U.S. Bureau of Mines, 1973, locality 42).  Location is approximate within a one mile radius.                               | As, Fe                          | Arsenopyrite, galena, molybdenite, pyrite                                                                                      | Quartz                                                                    | Prospect   | Inactive          | No            | Dilatant, structurally controlled quartz-molybdenite vein sets                                     | A three to four mile long zone of molybdenite-bearing quartz lenses and stringers cutting Tertiary granite (Reed and Lanphere, 1972 and MacKevett and Holloway, 1977, p. 77).  Galena, pyrite and arsenopyrite are reported by Berg and Cobb (1967, p. 36-37).  Published descriptions of this locality are very similar to the Miss Molly prospect (ARDF TY013).  It is possible that the location was inaccurately reported and this is actually the Miss Molly prospect.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | Surface prospecting                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | Published descriptions of this locality are very similar to the Miss Molly prospect (ARDF TY0013).  It is possible that the location was inaccurately reported and this is actually the Miss Molly prospect.                                                   | Berg, H.C., and Cobb, E.H., 1967, Metalliferous lode deposits of Alaska:  U.S. Geological Survey Bulletin 1246,  254 p.��Cobb, E.H., 1972, Metallic mineral resources map of the Tyonek quadrangle, Alaska:  U.S. Geological Survey Miscellaneous Field Studies Map MF-385, 1 sheet, scale 1:250,000.    ��Cobb, E.H., 1979, Summary of references to mineral occurrences (other than minerals fuels and construction materials) in the Kenai and Tyonek Quadrangles, Alaska:  U.S. Geological Survey Open-File Report 80-86, 36 p.��MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��Reed, B.L., and Lanphere, M.A., 1972, Generalized geologic map of the Alaska-Aleutian range batholith showing potassium-argon ages of the plutonic rocks:  U.S. Geological Survey Miscellaneous Field Studies Map MF-372, 2 sheets, scale 1:1,000,000.��U.S. Bureau of Mines, 1973, Alaska 1:250,000-scale quadrangle map overlays showing mineral deposit locations, principal minerals, and number and type of claims:  U.S. Bureau of Mines Open-File Report 20-73, 95 overlays (updated in 1986, 1987).��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.htm                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | TY015       | Madelyn A. Millholland (Anchorage), James Riehle (USGS)                                     | 6/1/1998         | A010588                   | May be related to Tertiary (56-59 m.y.) intrusions nearby. (Reed and Lanphere, 1972)                                                                                |                      |                      | Silicification                                                                                                                                                                                                                                                                                                     | �                                                                                                                                                                                                                                                                                                                        | Small tonnage reported by Berg and Cobb (1967).                                                                                                                                                                                                                                                                                                                                                                | Berg and Cobb, 1967                                             |
| Unnamed                                            | Au, Cu, Mo         | TY       | C-7        | 61.7     | 152.56    | MacKevett and Holloway (1977, locality 12) show this lode prospect on the west side of the Hayes River approximately 28 miles up from the confluence with the Skwentna River; in about the center of the west half of Section 33, T. 19 N., R. 18 W at about 5100 feet elevation  (U.S. Bureau of Mines, 1998, MAS # 0020840006 and 0020840032 and U.S. Bureau of Mines, 1973, locality 50).                                                                                                       |                                 |                                                                                                                                |                                                                           | Prospect   | Undetermined      | None          | Unknown                                                                                            | Lode claim located by St. Eugene Mining Corp. in the 1970s for gold (USBM, 1998).  Occurrence is probably near the contact between lower Tertiary granitic rocks and Jura-Cretacous flysch of the Kahiltna Group. (MacKevett and Holloway, 1977, p. 77).  No other published information is available.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | Surface prospecting.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | No descriptive information is published on this prospect.                                                                                                                                                                                                      | MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��U.S. Bureau of Mines, 1973, Alaska 1:250,000-scale quadrangle map overlays showing mineral deposit locations, principal minerals, and number and type of claims:  U.S. Bureau of Mines Open-File Report 20-73, 95 overlays (updated in 1986, 1987).��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | TY016       | Madelyn A. Millholland (Anchorage)                                                          | 6/1/1998         | A106261                   |                                                                                                                                                                     |                      |                      |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | MacKevett and Holloway, 1977                                    |
| Unnamed (near upper Crystal Creek)                 | Pb, Zn             | TY       | C-8        | 61.53    | 152.99    | Reed and Elliott (1970, S-30, p.21) collected a float sample with visible base metal sulfides from a tributary to Upper Crystal Creek, near the western boundary of the Tyonek Quadrangle at about the center of the north side of  sec. 25, T. 17 N., R. 21 W. (Cobb, 1972, MF 385, locality 3 and U.S. Bureau of Mines, 1998, MAS # 0020840003).  Location is approximate to within a one mile radius.                                                                                           | As, Fe                          | Arsenopyrite, galena, pyrite, sphalerite                                                                                       |                                                                           | Occurrence | Undetermined      | None          | Unknown.                                                                                           | Boulder of altered, sheared, fine-grained igneous rock contains 2% disseminated pyrite, 1% to 2% galena, and traces of sphalerite and arsenopyrite (Reed and Elliott, 1970, S-30, p.21).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      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                                                                               |                                                                                                                                                                                                                                                                | Cobb, E.H., 1972, Metallic mineral resources map of the Tyonek quadrangle, Alaska:  U.S. Geological Survey Miscellaneous Field Studies Map MF-385, 1 sheet, scale 1:250,000.    ��Cobb, E.H., 1979, Summary of references to mineral occurrences (other than minerals fuels and construction materials) in the Kenai and Tyonek Quadrangles, Alaska:  U.S. Geological Survey Open-File Report 80-86, 36 p.��Reed, B.L., and Elliott, R.L., 1970, Reconnaissance geologic map, analyses of bedrock and stream sediment samples, and an aeromagnetic map of parts of the southern Alaska Range:  U.S. Geological Survey Open-file Report 70-271, 24 p., 4 sheets, scale 1:250,000.��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | TY017       | Madelyn Millholland (Anchorage), James Riehle (USGS)                                        | 6/1/1998         | A106251                   |                                                                                                                                                                     |                      |                      |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | Reed and Elliott, 1970                                          |
| Island Mountain                                    | Au, Cu, Mo, Zn     | TY       | D-8        | 61.7748  | 152.7594  | The center of the Island Mountain prospect is about  3.2 miles south-southwest of the mouth of Emerald Creek on the Skwentna River. It is about 0.5 mile west of the center of section 33,  T. 20 N.,  R. 19 W.  The prospect occupies much of the prominent mountain between Emerald Creek and the Skwentna River.  The location is accurate.                                                                                                                                                     | As, Fe                          | Arsenopyrite, chalcopyrite, gold, molybdenite, pyrite, pyrrhotite, sphalerite                                                  | Magnetite, quartz                                                         | Prospects  | Active            | None          | Gold-copper porphyry (Cox and Singer, 1986; model 20c).                                            | The Island Mountain prospect  was discovered by Cominco Alaska, who worked in the area from 1986 to 1989 (Wahl and others, 2008).  Kennecott Exploration Company was active in the area from 2004 to 2006 and staked a large block of claims that covered the Island Mountain prospect. Geoinformatics Exploration Inc. acquired the property from Kennecott in 2007 and in 2009, Kiska Metals Corporation  was formed by a merger of Geoinformatics and Rimfire Minerals Corporation. In early 2010, Kiska Metals (2010a) was exploring their claim blocks as the Whistler project and they drilled the Island Mountain prospect in 2009.�   The rocks in the area are Jurassic and Cretaceous sediments of the  Kahlitna terrane that are intruded by a small body of Cretaceous or Tertiary granite and quartz monzonite (Reed and Elliott, 1970; Wilson and others, 2009).  As studied by  Cominco American (unpublished reports, 1987 and 1988), the Island Mountain deposit consists of pyrite-chalcopyrite-quartz veins; disseminated pyrite and chalcopyrite; and arsenopyrite-gold and stockwork quartz veins with magnetite and trace molybdenite. The mineralization is in  fine- to medium- grained plagioclase-hornblende porphyritic andesite and medium-grained monzonite that are probably related to the mineralization. Carbonate-rich beds in the sedimentary country rocks are locally replaced with pyrrhotite, pyrite, and sphalerite.�   As mapped by Kiska Metals (2010b), the Island Mountain prospect covers an area about 3 by 4 kilometers in size. Monzonite porphyry, diorite, and monzonite intrude argillite and hornfels at the prospect.  Kiska Metals drilled two holes in 2006 and two holes in 2009. The first hole in 2009 targeted a hydrothermal breccia zone 150 meters in diameter. Surface samples from the breccia zone contained actinolite, magnetite, pyrrhotite, pyrite, and chalcopyrite, and assayed up to 1.19 gram of gold per tonne, 5.2 grams of silver per tonne, and 0.2 percent copper.  The hole intersected two zones of gold mineralization. A 150-meter intercept averaged 0.72 gram of gold per tonne; a 106.9 intercept averaged 1.22 grams of gold per tonne. The hole was almost entirely in diorite. The second hole averaged 0.13 gram of gold per tonne over 202.3 meters. Kiska Metals considers the deposit to be a gold-copper porphyry similar to the Whistler deposit (TY022) to the north.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | Exploration included silt sampling, mapping, rock and contour soil sampling, soil grid geochemical surveys, magnetic and VLF geophysical surveys and diamond drilling by Cominco America in the mid-1980s.  Similar work continued to 2009 by Kennecott and Kiska Metals. Kiska Metals drilled two holes in 2006 and 2 holes in 2009.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                                                                | Kiska Metals Corporation, 2009, Kiska drills 106.9 metres of 1.22 g/t gold at Island Mountain area, Whistler, Alaska:  http://www.kiskametals.com/s/Kiska_News.asp?ReportID=369977 (News release, November 2, 2010).��Kiska Metals Corporation, 2010a,  Whistler project overview; http://www.kiskametals.com/s/Whistler.asp?ReportID=370036 (as of February 26, 2010).��Kiska Metals Corporation, 2010b, Maps and figures:  http://www.kiskametals.com/s/Whistler.asp?ReportID=370037 (as of February 28, 2010).��Reed, B.L., and Elliott, R.L., 1970, Reconnaissance geologic map, analyses of bedrock and stream sediment samples, and an aeromagnetic map of parts of the southern Alaska Range:  U.S. Geological Survey Open-file Report 70-271, 24 p., 4 sheets, scale 1:250,000.��Wahl, George, Coutture, Jean-Francois, and Keller, GD., 2008,  Mineral resource estimation, Whistler copper-gold project, Alaska Range, Alaska: Technical report for Geoinformatics Exploration, Inc., 124 p. (posted on www.sedar.com,  February 22, 2008).��Wilson, F.H., Hults, C.P., Schmoll, H.R., Haeussler, P.J., Schmidt, J.M., Yehle, L.A., and Labay, K.A.,  2009, Preliminary geologic map of the Cook Inlet region, Alaska:  U.S. Geological Survey Open-File report  209-1108, 99 p., 2 sheets, scale 1:250,000. �������                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | TY018       | Madelyn A. Millholland (Anchorage); D.J. Grybeck (Contractor, U.S. Geological Survey)       | 4/2/2010         | A106267                   | Younger than, or genetically related to, the Cretaceous or Tertiary plutonic host rocks.                                                                            |                      | 20c                  | Propylitic (chlorite-epidote-carbonate +/- magnetite); argillic/sericitic; silicic.                                                                                                                                                                                                                                | None.                                                                                                                                                                                                                                                                                                                    | None.                                                                                                                                                                                                                                                                                                                                                                                                          | Kiska Metals Corporation, 2010b                                 |
| Unnamed (Near Mount Estelle)                       | Au, Cu             | TY       | D-8        | 61.8497  | 152.8928  | This records includes numerous prospects are in  a 10-mile-square area near Mt. Estelle. The coordinates are at about the center of this area that includes parts of  T. 20 N., R. 20 W., T. 21 N., R., 19 W., and T. 21 N., R. 20 W.                                                                                                                                                                                                                                                              | As, Mo, Pb, Sb, Zn              | Arsenopyrite, chalcopyrite, galena, malachite, molybdenite, native gold, pentlandite, pyrite, pyrrhotite, sphalerite, stibnite | Carbonate, chlorite, limonite, quartz, sericite                           | Prospects  | Active            | None          | Intrusive-hosted gold-copper deposits.                                                             | Note: This is an early ARDF record that describes work in the general area of Mount Estelle.  Exploration work from 2000 to 2008 (Hidefield Gold, Plc., 2008; International Tower Hill Mines, Ltd., 2007; Millrock Resources Inc., 2008) has defined several specific prospects in or near this area within this area or nearby that are described separately, e.g., the Train (T031)  and Shoeshine (TY032) prospects.  This record is retained for its general geologic information on the geology and mineralization in the area.�   The Mount  Estelle pluton, dated at 65 to 66 Ma by Reed and Lanphere (1972), is the southern-most Late Cretaceous/early Tertiary composite pluton in the Yentna trend.  This trend is described by Reed and Nelson (1980) as a 65-km-long, curvilinear belt extending from Mount  Estelle in the south to Cascade Creek in the northeast.  These plutons primarily intrude Mesozoic marine sedimentary rocks of the Kahiltna terrane.  The Mount Estelle pluton (Reed and Elliott, 1970) is zoned from a granite core to marginal phases of quartz monzonite, quartz monzodiorite, augite monzodiorite, diorite and lamprophyric mafic and ultramafic rocks (Millholland,1995; Crowe and others, 1991; Crowe and Millholland, 1990).  Xenoliths of the country rocks and of the various intrusive phases occur throughout the pluton.  Sheeted joint sets and unusual spherical, onion-skin-like features occur in the core of the pluton.  Sparse tourmaline and beryl occur in and adjacent to the pluton.  Foley and others (1997) note that the composite plutons at the southwestern end of the Yentna trend are more granitic in composition and probably have not been as deeply eroded as the more mafic and ultramafic bodies to the northeast in the Talkeetna quadrangle.  Adjacent to the Mount Estelle pluton, the country rock is hornfelsed and locally exhibits red staining and sercite-clay alteration, and pyrite in disseminations and along fractures.�   Float and stream-sediment samples taken in the vicinity of the Mount Estelle pluton suggest widespread polymetallic mineralization. Stream sediments consistently contain anomalous gold, copper, arsenic, and silver.  Mineralized rock samples typically give high values for gold and copper, and some contain anomalous amounts of silver, arsenic, molybdenum, bismuth, boron, lead, antimony, tin, zinc and manganese.  Cominco American Incorporated's work (unpublished reports, 1985-1989) shows gold values.  Native gold occurs with chalcopyrite, pyrite, arsenopyrite, and pyrrhotite associated with sericite, carbonate and chlorite alteration in sheeted joints, stockwork veinlets, and circular structures that range from 1 inch to more than 15 feet in diameter (Millholland,1995; Crowe and others, 1991; Crowe and Millholland, 1990).  These structures are in the felsic and intermediate phases of the pluton.  Gold associated with pyrrhotite, chalcopyrite, pentlandite and molybdenite also occurs in ultramafic rocks on the south side of the pluton.  Mineralization is less common in the sedimentary rocks.  In Muddy Creek, one zone of coarse galena, pyrrhotite, sphalerite and chalcopyrite replaces carbonate-rich horizons in the hornfelsed sedimentary rocks.�   Anomalous gold, platinum-group elements, copper, chrome, nickel and arsenic are reported from many of  the composite plutons of the Yentna trend (Reed and others, 1978; Reed and Nelson, 1980; Nelson and others 1992).  Gold and platinum-group-element placers have been worked at several sites downstream from the plutons (Mertie, 1919; Cobb, 1973; ARDF records TL001, TL 002, TL003, TL020, TL023, TL051, TL052, and TL053).�   There are notable similarities between the Mount Estelle pluton and the Kohlsaat pluton described by Reiners, Nelson, and Nelson (1996).  The Kohsaat pluton is a concentrically-zoned body with a biotite-granite-porphyry core that intrudes seriate and porphyritic, intermediate composition rocks.  The latter include olivine-, pyroxene-, and biotite-bearing quartz syenite, quartz monzonite, and monzonite.  Lamprophyric mafic and ultramafic rocks that range in composition from peridotite to alkali gabbro and monzonite form large xenoliths at the northeastern margin of the pluton. The granite- porphyry core is altered to sericite, quartz, carbonate and tourmaline assemblages, with minor enrichments of copper, gold, lead, molybdenum, and zinc.  The composite Kohlsaat pluton may have formed from depleted mantle melts that were contaminated by crustal components during several stages of mafic magma generation. Also see ARDF record TL052.         | Prospecting in the area has been conducted by several private companies since the 1970's.  From 1980 to 1985,  many of the claims were held for their placer potential; however, they were never mined to any great extent because the large glacial boulders in the stream gravels hampered recovery.  Work in the area included: silt and rock geochemistry, mapping, magnetic, VLF, IP and radar geophysical surveys, and diamond drilling.  To evaluate the steep, glaciated terrain, technical climbers from Dihedral Exploration were employed.�   This is an early ARDF record that describes work in the general area of Mount Estelle and has been retained for its regional geologic and mineral information.  Exploration work from 2000 to 2008 (Hidefield Gold, Plc., 2008; International Tower Hill Mines, Ltd., 2007; Millrock Resources Inc., 2008) has defined several prospects in or near that are described separately, e.g., the Train (TY031)  and Shoeshine (TY032) prospects.   |                                                                                                                                                                                                                                                                | Cobb, E.H., 1972, Metallic mineral resources map of the Tyonek quadrangle, Alaska:  U.S. Geological Survey Miscellaneous Field Studies Map MF-385, 1 sheet, scale 1:250,000.    ��Crowe, D.E., and Millholland, M.A., 1990, High-grade gold mineralization associated with high salinity hydrothermal fluids, Mt. Estelle pluton, central Alaska Range [abs.]:  Geological Society of America, Abstracts with Programs, v. 22, p. A41.��Crowe, D.E., Millholland, M.A., and Brown, P.E., 1991, Precious and base metal mineralization associated with high-salinity hydrothermal fluids in the Mount Estelle pluton, south-central Alaska:  Economic Geology, v. 86, p. 1103-1109.��Foley, J.Y., Light, T.D., Nelson, S.W., and Harris, R.A., 1997, Mineral occurrences associated with mafic-ultramafic and related alkaline complexes in Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Mineral Deposits of Alaska:  Economic Geology Monograph 9, p. 396-449.��Green, C.B., Bundtzen, T.K., Peterson, R.J., Seward, A.F., Deagan, J.R., and Burton, J.E., 1989, Alaska's mineral industry, 1988:  Alaska Division of Geological and Geophysical Surveys Special Report 43, 79 p.��Hidefield Gold Plc., 2008, South Estelle: http://www.hidefieldgold.com/s/SouthEstelle.asp (as of May 25, 2008).��International Tower Hill Mines Ltd., 2007, ITH further defines mineralization at South Estelle: http://www.ithmines.com/s/NewsReleases.asp?ReportID=267305&_Type=News-Releases&_Title=ITH-Further-Defines-Mineralization-at-South-Estelle (News Release, October 18, 2007).��MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��Millholland, M.A., 1995, Geology and discovery at Mount Estelle: Newsletter of the Alaska Geological Society, v. 24, no. 8, p. 1.��Millrock Resources Inc., 2008, Estelle: http://www.millrockresources.com/index.php/projects/estelle/ (as of May 25, 2008). ��Reed, B.L., and Elliott, R.L., 1970, Reconnaissance geologic map, analyses of bedrock and stream sediment samples, and an aeromagnetic map of parts of the southern Alaska Range:  U.S. Geological Survey Open-file Report 70-271, 24 p., 4 sheets, scale 1:250,000.��Reed, B.L., and Lanphere, M.A., 1972, Generalized geologic map of the Alaska-Aleutian range batholith showing potassium-argon ages of the plutonic rocks:  U.S. Geological Survey Miscellaneous Field Studies Map MF-372, 2 sheets, scale 1:1,000,000.��Reed, B.L., and Nelson, S.W., 1980, Geologic map of the Talkeetna quadrangle:  U.S. Geological Survey Miscellaneous Investigations Map I-1174, 1 sheet, scale 1:250,000.��Reiners, P.W., Nelson, B.K., and Nelson, S.W., 1996, Evidence for multiple mechanisms of crustal contamination of magma from compositionally zoned plutons of the Alaska Range:  Journal of Petrology, v. 37, p. 261-292.��Reed, B.L., Nelson, S.W., Curtin, G.C., and Singer, D.A., 1978, Mineral resources map of the Talkeetna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-870-D, 1 sheet, scale 1:250,000.��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                             | TY019       | Madelyn A. Millholland (Anchorage, AK), James Riehle (USGS); D.J. Grybeck (Port Ludlow, WA) | 6/5/2008         | A010587                   | Late Cretaceous to Early Tertiary based on 65 to 66 Ma. intrusions that are probably related to the mineralization (Reed and Lanphere,1972).                        |                      |                      | Alteration is weak and restricted to vein and joint selvages.  Carbonate, chlorite, sericite, and quartz are commonly associated with the sulfide and gold mineralization (Millholland,1995; Crowe and others, 1991; Crowe and Millholland, 1990; Cominco American Incorporated, unpublished reports, 1985 -1989). |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | Millrock Resources Inc., 2008 (Estelle)                         |
| Stoney; North Stoney; Trundle; Tomahawk; Kid       | Ag, Au, Cu, Pb     | TY       | D-8        | 61.9115  | 152.9159  | The Stoney prospect is about 0.5 mile northwest of Mount Stoney, in the NE1/4, section 15, T. 21 N., R. 20 W.  The location is accurate to within about a half mile.                                                                                                                                                                                                                                                                                                                               | As, Sb                          | Arsenopyrite, chalcopyrite, native copper, galena, gold, pyrite, pyrrhotite, sphalerite, stibnite                              | Calcite, dolomite, epidote, graphite, siderite, tourmaline, quartz        | Prospects  | Active            | None          | Polymetallic vein (Cox and Singer, 1986; model 22c).                                               | The Stoney prospect and others in the vicinity are on the  Yentna trend of  Late Cretaceous/early Tertiary composite plutons  described by Reed and Nelson (1980).  The Mount Estelle pluton (Reed and Elliott, 1970) extends from Timber Creek on the south to the Portage Creek area in the north.  In the central part of the pluton, a biotite-hornblende-quartz monzonite intrudes Mesozoic marine sedimentary rocks of the Kahiltna terrane.�   Two veins follow dilatant zones in the pluton along its west side (Cominco American Incorporated, unpublished reports, 1986-1987). The main Stoney mineralized zone dips steeply and has been traced for more than 3 miles. It is 14 to 60 feet wide and has a vertical relief of at  least 1000 feet.  The quartz-calcite-dolomite-siderite-tourmaline veins alternate with altered intrusive rocks and the veins contain pyrrhotite, chalcopyrite, arsenopyrite, pyrite stibnite, and locally sphalerite, and galena.  The North Stoney vein is a sub-parallel feature just west of the northern end of the main Stoney vein.  It  is up to 35 feet wide and  has similar mineralogy to the main Stoney vein.  A third vein is one mile to the west.�   There was considerable work in the area by government and industry as far back as the 1970's that identified widespread mineralization in the Mount Estelle area (see TY019). From 2005 to 2008, several companies-- Hidefield Gold Plc. (2008), International Tower Hill Mines Ltd. (2007) and  Millrock Resources Inc. (2008)--have worked in the area and identified several specific prospects.  Millrock is currently (2008) exploring the area as part of the Estelle project that covers a large block of claims north and south of Mount Estelle. The Stoney vein is within that block and Millrock has sampled it.  Hidefield (2008) shows several other veins to the north and south; the Trundle vein and another unnamed vein are about two miles to the north, the Tomahawk vein is about 4 miles to the north, and the Kid vein is about 4 miles the south.  All are in the Mount Estelle pluton and are probably similar to the Stoney, Shoeshine (TY032), and Train (TY031) prospects to the south.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | There was considerable work in the area by government and industry as far back as the 1970's that identified widespread mineralization in the Mount Estelle area (see TY019). From 2005 to 2008, several companies-- Hidefield Gold Plc. (2008), International Tower Hill Mines Ltd. (2007) and  Millrock Resources Inc. (2008)--have worked in the area and defined several specific prospects  Millrock is currently (2008) exploring the area as part of its Estelle project which covers a large block of claims north and south of Mount Estelle. The Stoney vein is in that block and Millrock has sampled it.  The only work to 2008 has been surface sampling.                                                                                                                                                                                                                                                                                                                                  |                                                                                                                                                                                                                                                                | Hidefield Gold Plc., 2008, South Estelle: http://www.hidefieldgold.com/s/SouthEstelle.asp (as of May 25, 2008). ��International Tower Hill Mines Ltd., 2007, ITH further defines mineralization at South Estelle: http://www.ithmines.com/s/NewsReleases.asp?ReportID=267305&_Type=News-Releases&_Title=ITH-Further-Defines-Mineralization-at-South-Estelle (News release, October 18, 2007).��Millrock Resources Inc., 2008, Estelle: http://www.millrockresources.com/index.php/projects/estelle/ (as of May 25, 2008).��Reed, B.L., and Elliott, R.L., 1970, Reconnaissance geologic map, analyses of bedrock and stream sediment samples, and an aeromagnetic map of parts of the southern Alaska Range:  U.S. Geological Survey Open-file Report 70-271, 24 p., 4 sheets, scale 1:250,000.��Reed, B.L., and Nelson, S.W., 1980, Geologic map of the Talkeetna quadrangle:  U.S. Geological Survey Miscellaneous Investigations Map I-1174, 1 sheet, scale 1:250,000.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | TY020       | Madelyn A. Millholland (Anchorage); D.J. Grybeck (Port Ludlow, WA)                          | 6/5/2008         | A106256                   | Possibly related to the Cretaceous Mount Estelle pluton that is the host rock.                                                                                      |                      | 22c                  | Calcite, epidote, sericite, tourmaline, quartz.                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | Millrock Resources Inc., 2008 (Estelle)                         |
| 1:30                                               | Ag, Au, Cu, Mo, Zn | TY       | D-8        | 61.96    | 152.76    | Alaska Department of Natural Resources claim records show this prospect area two miles up a southern tributary to Portage Creek in the southeast quarter of Section 28, T. 22 N., R. 19 W.  Exposed on mountain slopes on the northwest side of the creek.  Approximately 7 miles west-southwest of the confluence of Portage Creek and the Skwentna River.                                                                                                                                        | As, Sb                          | Arsenopyrite, chalcopyrite, molybdenite, pyrite                                                                                | Quartz                                                                    | Prospect   | Inactive          | No            | Polymetallic vein(s);  copper-moly porphyry?                                                       | Fine- to medium-grained, equigranular biotite-hornblende diorite intrudes and hornfels Mesozoic marine sedimentary rocks (KJs) of the Kahlitna terrane (Reed and Elliott, 1970).  The hornfels is pyritic and locally sheared.  Float from inaccessible portions of the diorite have thin (less than 1 inch) veins of quartz-arsenopyrite-pyrite and quartz-molybdenite-sphalerite.  Samples of vein material from the diorite contained up to 4400 ppb gold and 1380 ppm silver.  A 15 foot chip samples across pyritic, sheared hornfels ran 3800 ppb gold.  (Cominco American Incorporated, unpublished reports, 1987-1988).  The diorite is probably part of the Late Cretaceous/Early Tertiary Mount Estelle plutonic suite (Tme) (Reed and Elliott, 1970; Reed and Nelson, 1980); veins may be genetically related to the host rocks.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | Exploration work included silt and rock chip geochemical sampling and mapping.  (Cominco American Incorporated, unpublished report, 1987).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |                                                                                                                                                                                                                                                                | Reed, B.L., and Elliott, R.L., 1970, Reconnaissance geologic map, analyses of bedrock and stream sediment samples, and an aeromagnetic map of parts of the southern Alaska Range:  U.S. Geological Survey Open-file Report 70-271, 24 p., 4 sheets, scale 1:250,000.��Reed, B.L., and Nelson, S.W., 1980, Geologic map of the Talkeetna quadrangle:  U.S. Geological Survey Miscellaneous Investigations Map I-1174, 1 sheet, scale 1:250,000.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | TY021       | Madelyn A. Millholland (Anchorage)                                                          | 6/1/1998         | A106258                   | Host rocks are late Cretaceous or Early Tertiary (?) (by Reed and Elliott, 1970 and Reed and Nelson, 1980); the veins may be genetically related to the host rocks. |                      |                      | Limonite, quartz                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | Reed and Elliott, 1970                                          |
| Whistler                                           | Au, Ba, Cu, Pb, Zn | TY       | D-8        | 61.9638  | 152.6799  | The center of the Whistler prospect is about 3.8 miles west of the junction of Portage Creek and the Skwentna River, near the center of section 29,  T. 22 N., R 18 W. The location is accurate.                                                                                                                                                                                                                                                                                                   | Fe                              | Chalcopyrite, galena, gold, pyrite, sphalerite                                                                                 | Carbonate, chlorite, gypsum, magnetite, quartz                            | Prospect   | Active            | No            | Gold-copper porphyry (Cox and Singer, 1986; model 20c).                                            | In early 2010, the Whistler propect was the most developed property of the  Whistler project of  Kiska Metals Corporation and was aggressively being explored (Kiska Metals Corporation, 2010).  Cominco Alaska began mineral exploration in the area in 1986; they drilled 15 short holes on the Whistler prospect but dropped it in 1989. It was restaked in 1999 and leased to Kennecott Exploration Company.  From 2004 to 2006 Kennecott carried out major exploration in the area, including geologic mapping; soil, stream sediment, and rock geochemistry; ground induced-polarization, geophysical surveys; and they drilled 15 core holes in the Whistler prospect that totaled 7,948 meters.  In 2005, Geoinfomatics Exploration Inc. acquired the property from Kennecott, and in 2009, Kiska Metals Corporation,  was formed through a merger of Geoinformatics and Rimfire Minerals Corporation.  As of 2008, the Whistler prospect is on a block of 732 State of Alaska mining claims.�   The Whistler prospect is a porphyry copper-gold deposit that in 2010  extended over an area at least 1,000 meters in diameter (Kiska Metals Corporation, 2010; Wahl and others, 2008).  It is closely associated with a Cretaceous-Tertiary extrusive igneous complex that overlays and intrudes feldspathic sandstone of Jurassic-Cretaceous age (Wilson and others, 2009).  Most of the complex consists of  'Intermediate stage' and 'main stage' diorite porphyry; the best mineralization is in the main-stage porphyry.  The complex is cut by dikes of  'late stage' diorite porphyry and porphyritic andesite.  The structure is not well constrained because of the wide spacing of the drill holes but there is at least one major fault and several breccia zones.�   The paragenesis of the mineralization is:  1) early barren, quartz-magnetite veins associated with secondary biotite alteration;  2) 'main' stage, quartz-magnetite-chalcopyrite veins, associated with secondary biotite, quartz-pyrite and pyrite veins, and pervasive quartz-sericite-pyrite alteration, and 3) late calcite veins with sphalerite and galena.  Gypsum is common. Near the complex, the original textures of the sedimentary rocks are almost obliterated by strong phyllitic alteration that makes it hard to distinguish them from the igneous rocks.�   As estimated by Wahl and others (2008), the Whistler deposit has a 'total indicated' resource of 30 millions tons of material with a grade of 0.87 gram of gold per tonne, 2.46 grams of silver per tonne, and 0.24 percent copper, and a 'total inferred' resource of 134 millions tonnes of material with a grade of 0.64 gram of gold per tonne,  2.18 grams of silver per tonne,  and 0.20 percent copper.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | In early 2010, the Whistler propect was the most developed property of the  Whistler project of  Kiska Metals Corporation and was aggressively being explored (Kiska Metals Corporation, 2010).  Cominco Alaska began mineral exploration in the area in 1986; they drilled 15 short holes on the Whistler prospect but dropped it in 1989. It was restaked in 1999 and leased to Kennecott Exploration Company.  From 2004 to 2006 Kennecott carried out major exploration in the area, including geologic mapping; soil, stream sediment, and rock geochemistry; ground induced-polarization, geophysical surveys; and they drilled 15 core holes in the Whistler prospect that totaled 7,948 meters.  In 2005, Geoinfomatics Exploration Inc. acquired the property from Kennecott, and in 2009, Kiska Metals Corporation,  was formed through a merger of Geoinformatics and Rimfire Minerals Corporation.  As of 2008, the Whistler prospect is on a block of 732 State of Alaska mining claims.   |                                                                                                                                                                                                                                                                | Kiska Metals Corporation, 2010,  Whistler project overview; http://www.kiskametals.com/s/Whistler.asp?ReportID=370036 (as of February 26, 2010) ��Wahl, George, Coutture, Jean-Francois, and Keller, GD., 2008,  Mineral resource estimation, Whistler copper-gold project, Alaska Range, Alaska: Technical Report for Geoinformatics Exploration, Inc., 124 p. (posted on www.sedar.com,  February 22, 2008).��Wilson, F.H., Hults, C.P., Schmoll, H.R., Haeussler, P.J., Schmidt, J.M., Yehle, L.A., and Labay, K.A.,  2009 Preliminary geologic map of the Cook Inlet region, Alaska:  U.S. Geological Survey Open-File report  209-1108, 99 p., 2 sheets, scale 1:250,000.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | TY022       | Madelyn A. Millholland (Anchorage); D.J. Grybeck (Contractor, U.S. Geological Survey)       | 4/2/2010         | A106263                   | Younger than or related to a Cretaceous-Tertiary diorite porphyry, intrusive-extrusive complex.                                                                     |                      | 20c                  | Early secondary biotite alteration in the porphyry; intense quartz-sericite-pyrite alteration during the main stage of mineralization in the porphyry; and strong phyllitic alteration in the sandstone around the intrusion.                                                                                      | None.                                                                                                                                                                                                                                                                                                                    | As estimated by Wahl and others (2008), the Whistler deposit has a 'total indicated' resource of 30 millions tons of material with a grade of 0.87 gram of gold per tonne, 2.46 grams of silver per tonne, and 0.24 percent copper, and a 'total inferred' resource of 134 millions tonnes of material with a grade of 0.64 gram of gold per tonne,  2.18 grams of silver per tonne,  and 0.20 percent copper. | Wahl and others, 2008                                           |
| Shirley Lake                                       | U                  | TY       | D-7        | 61.99    | 152.42    | The prospect is located on the north side of Shirley Lake in the southeast quarter of Section 16, T. 22 N., R. 17 W.  The location of this prospect is approximated from U.S. Bureau of Mines, 1998 (MAS # 0020840013); Cobb, 1972 (MF 385, locality 4); and Reed and others, 1978 (locality 37).                                                                                                                                                                                                  |                                 | Unidentified secondary uranium minerals                                                                                        |                                                                           | Prospect   | Probably inactive | No            |                                                                                                    | Secondary uranium minerals sporadically localized along joints in Tertiary tuff and tuff-breccia (Cobb, 1979, OFR 80-86, p. 22;  Reed and others,1978; and Reed and Nelson,1980).  Radioactive rock probably formed by deposition of small amounts of uranium that migrated with subsurface water moving along joints.  Exploration did not disclose any extension of radioactive rock below surface or away from joints.  Maximum amount of radioactivity in USGS samples was 0.021% uranium; prospector reported assay of 0.29% uranium in one sample (Freeman,1963, p. 29-30).  The area prspected  in the Long Lake Hills around Shirley Lake, extends into the Talkeetna Quadrangle to the north.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | Shallow pits were excavated and scintillometer surveys conducted.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | The area prospected  in the Long Lake Hills around Shirley Lake extends into the Talkeetna Quadrangle to the north.                                                                                                                                            | Cobb, E.H., 1972, Metallic mineral resources map of the Tyonek quadrangle, Alaska:  U.S. Geological Survey Miscellaneous Field Studies Map MF-385, 1 sheet, scale 1:250,000.    ��Cobb, E.H., 1979, Summary of references to mineral occurrences (other than minerals fuels and construction materials) in the Kenai and Tyonek Quadrangles, Alaska:  U.S. Geological Survey Open-File Report 80-86, 36 p.��Freeman, V.L., 1963, Examination of uranium prospects, 1956, in Contributions to economic geology of Alaska:  U.S. Geological Survey Bulletin 1155, p. 29-33.��MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��Reed, B.L., and Nelson, S.W., 1980, Geologic map of the Talkeetna quadrangle:  U.S. Geological Survey Miscellaneous Investigations Map I-1174, 1 sheet, scale 1:250,000.��Reed, B.L., Nelson, S.W., Curtin, G.C., and Singer, D.A., 1978, Mineral resources map of the Talkeetna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-870-D, 1 sheet, scale 1:250,000.��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | TY023       | Madelyn A. Millholland (Anchorage), James Riehle (USGS)                                     | 6/1/1998         | A011830                   |                                                                                                                                                                     |                      |                      |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          | All deposits appear to be small and low grade (Cobb, 1979, OF 80-86, p. 22).                                                                                                                                                                                                                                                                                                                                   | Freeman, 1963                                                   |
| Unnamed (near Skwentna River)                      | Ag, Au, Cu, Pb     | TY       | D-7        | 61.96    | 152.3     | The location of this occurrence is approximated from Spurr (1900,  p. 110-112, June 24 campsite; U.S. Bureau of Mines, 1998, MAS # 0020840014; MacKevett and Holloway, 1977, p. 76, locality 4; and Cobb, 1972, MF 385, locality 5) in Section 25, T. 22 N., R. 17 W.  One of the reporters (Millholland) was unable to located the occurrence in the field using the localites cited above.                                                                                                       |                                 | Chalcopyrite, galena, native gold?, pyrite                                                                                     | Quartz                                                                    | Occurrence | Inactive          | No            | Hydrothermal/contact metamorphic?, polymetallic vein?, disseminated?(MacKevett and Holloway, 1977) | Folded volcanic rocks are cut by granitic dioritic and syenitic dikes.  Rock along contacts between dikes and volcanics are decomposed and iron stained (Spurr,1900, p. 110-112).  Narrow quartz veins up to several inches wide are rich in pyrite, chalcopyrite and galena.  Other zones near, but not at, contacts generally follow stratification, are similarly mineralized and contain gold and silver.  Upstream, black slate is cut by granitic dikes; quartz veins carry pyrite, chalcopyrite and galena.   Assay of sample with pyrite and chalcopyrite assayed 0.05 oz/ton gold and 0.15 oz/ton silver.  Assay of a quartz vein sample returned 0.1 oz/ton gold and 0.25 oz/ton silver (Spurr, 1900, p.259).  The basic reference was published in 1900; no more recent information is available.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | Prospecting,  rock sample assayed.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | The basic reference was published in 1900; no more recent information is available.                                                                                                                                                                            | Berg, H.C., and Cobb, E.H., 1967, Metalliferous lode deposits of Alaska:  U.S. Geological Survey Bulletin 1246,  254 p.��Cobb, E.H., 1972, Metallic mineral resources map of the Tyonek quadrangle, Alaska:  U.S. Geological Survey Miscellaneous Field Studies Map MF-385, 1 sheet, scale 1:250,000.   ��MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��Spurr, J.E., 1900, A reconnaissance in southwestern Alaska in 1898:  U.S. Geological Survey 20th Annual Report, part 7, p. 31-264.��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | TY024       | Madelyn A. Millholland (Anchorage), James Riehle (USGS)                                     | 6/1/1998         | A011831                   |                                                                                                                                                                     |                      |                      |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | Spurr, 1900                                                     |
| Old Man Breccia                                    | Au, Cu             | TY       | D-7        | 61.9398  | 152.3248  | The Old Man Breccia prospect is about 3.8 miles west-southwest of the junction of Old Man Creek and Happy River.  It is about 0.5 mile west of the center of section 1, T. 21 N., R. 17 W.  The location is accurate.                                                                                                                                                                                                                                                                              | Fe                              | Chalcopyrite, gold, pyrite, pyrrhotite                                                                                         | Carbonate, quartz                                                         | Prospect   | Active            | None          | Gold-bearing sulfide breccia.                                                                      | In early 2010, the Old Man Breccia prospect was part of the  Whistler project of  Kiska Metals Corporation and was is actively being explored (Kiska Metals Corporation, 2010a).  Cominco Alaska began mineral exploration in the area in 1986; they found the deposit but ended their work in 1989. From 2004 to 2006 Kennecott Exploration Company carried out major exploration in the area, including geologic mapping; soil, stream sediment, and rock geochemistry; and geophysical surveys. They staked several large blocks of ground that included the Old Man Breccia prospect. In 2005, Geoinformatics Exploration Inc. acquired the property from Kennecott, and in 2009, Kiska Metals Corporation was formed by a merger of Geoinformatics and Rimfire Minerals Corporation.�   A float sample of quartz with pyrrhotite, chalcopyrite, and pyrite, that assayed contained several ounces of gold per ton led to the discovery of the deposit. It consists of breccia in siltstone of Upper Jurassic and Lower Cretaceous flysch (KJs) of the Kahiltna terrane (Cominco American Incorporated, unpublished reports,1986-1988; Wilson and others, 2009).  The breccia is exposed over an area approximately 105 feet by 90 feet.  It consists of angular clasts of argillite from less than one inch to a few inches cemented by milky quartz and lesser carbonate.  The quartz-argillite breccia forms sinuous, sub-vertical zones around large argillite blocks.  Sulfides in the breccia are sparse (generally less than 1 percent) and consist of pyrrhotite, pyrite,chalcopyrite, and rare coarse-grained arsenopyrite.  Quartz veins with pyrrhotite, pyrite, and chalcopyrite that crosscut the breccia zone vary from a few inches to 2 feet thick; they contain occasional specks of visible gold.  There is no obvious alteration.�   In 2009, three trenches showed substantial gold values in an area of breccia about 30 meters  in diameter (Kiska Metals Corporation, 2010b). Channel samples included:  0.74 gram of gold per tonne along 16 meters; 1.94 grams of gold per tonne along 24 meters; 3.34 grams of gold per tonne along 28 meters; and 7.12 grams of gold per tonne along 10 meters. Only small sections of the trenches had gold values below 0.30 gram of gold per tonne.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | Discovered by Cominco in the early 1980s. Exploration work included mapping, rock chip geochemistry, soil sampling, magnetic and VLF geophysical surveys, and diamond drilling. Kennecott Exploration Company probably did some work from 2004 to 2006. Trenched and sampled by Kiska Metals Exploration in 2009.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                                                                                | Kiska Metals Corporation, 2010a,  Whistler project overview; http://www.kiskametals.com/s/Whistler.asp?ReportID=370036 (as of February 26, 2010) ��Kiska Metals Corporation, 2010b, Old Man Breccia returns 28 meters of 23.34 g/t gold i channel sampling at Whistler project, Alaska:  http://www.kiskametals.com/s/Kiska_News.asp?ReportID=380655 (News release dated January 14, 2010)��Wilson, F.H., Hults, C.P., Schmoll, H.R., Haeussler, P.J., Schmidt, J.M., Yehle, L.A., and Labay, K.A.,  2009, Preliminary geologic map of the Cook Inlet region, Alaska:  U.S. Geological Survey Open-File report  209-1108, 99 p., 2 sheets, scale 1:250,000.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | TY025       | Madelyn A. Millholland (Anchorage); D.J. Grybeck (Contractor, U.S. Geological Survey)       | 4/2/2010         | A106260                   | The breccia is younger than the Jurassic-Cretaceous host rock.                                                                                                      |                      |                      | Iron-oxide.                                                                                                                                                                                                                                                                                                        | None.                                                                                                                                                                                                                                                                                                                    | None.                                                                                                                                                                                                                                                                                                                                                                                                          | Kiska Metals Corporation, 2010a and 2010b                       |
| Old Man Diorite                                    | Ag, Au, Mo         | TY       | D-7        | 61.91    | 152.32    | Alaska Department of Natural Resources claim records show the prospect located approximately 3000 to 3500 feet in elevation on the south side of Old Man Creek, about five miles up stream from the confluence of Old Man Creek and the Skwentna River in Section 13, T. 21 N., R. 17 W.                                                                                                                                                                                                           | As, Ba                          | Arsenopyrite, chalcopyrite, gold, molybdenite, pyrite, pyrrhotite, sphalerite                                                  | Carbonate, chlorite, quartz                                               | Prospect   | Inactive          | None          | Polymetallic veins                                                                                 | At this locality a Late Cretaceous/Early Tertiary(?) diorite is cut by shallow (10-30 degree) veins less than 1 foot to 5 foot thick, and poorly developed stockwork veins.  Mineralization consists of varying amounts of quartz, chlorite, arsenopyrite, pyrite, pyrrhotite, molybdenite, and carbonate.   The best gold grades are associated with zones of sub-parallel veins.  Gold ranges from ten's of ppb to 0.122 oz/ton (Cominco American Incorporated, unpublished reports, 1986-1987).  The diorite is probably one of the late Cretaceous/Early Tertiary Kichatna plutons (TKk) described by Reed and Nelson (1980) in the Talkeetna quadrangle to the north.  A K-Ar age of 67.4 +/-2 m.y. suggests that these plutons may be slightly older than the 65-km belt of composite plutons to the west.  The veins may be related to the diorite intrusion.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | Exploration work included silt and rock chip geochemical sampling, mapping, and diamond drilling.  The property is steep and technical climbers with Dihedral Exploration were employed to conduct geologic and geochemical surveys.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                | Reed, B.L., and Elliott, R.L., 1970, Reconnaissance geologic map, analyses of bedrock and stream sediment samples, and an aeromagnetic map of parts of the southern Alaska Range:  U.S. Geological Survey Open-file Report 70-271, 24 p., 4 sheets, scale 1:250,000.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | TY026       | Madelyn A. Millholland (Anchorage)                                                          | 6/1/1998         | A106259                   | The host rock is late Cretaceous/Early Tertiary(?)diorite; the veins may be related to the diorite intrusion.                                                       |                      |                      | Carbonate, pyrite, sericite, quartz                                                                                                                                                                                                                                                                                |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | Reed and Elliott, 1970                                          |
| Kahiltna River                                     | Au                 | TY       | D-2        | 61.99    | 150.75    | Carnes (1976, locality 4) defines this placer prospect as covering approximately a four and one-half mile stretch along the Kahiltna River centered at about the middle of  the boundary between Sections 21 and 16 in T. 22., R. 18 W. (Cobb, 1972, MF 385, locality 7 and U.S. Bureau of Mines 1973, localities 22, 39, and 59).  This site is on upstream extention of the placer site along the same river described in ARDF TY028.                                                            | Pt, REE, Sn, Th, Ti, U,  W,  Zr | Cassiterite, gold, monazite, platinum, rutile, scheelite, uranothorianite                                                      | Garnet, HEMATITE, ILMENITE, Magnetite, QUARTZ, SPHENE, TOURMALINE, zircon | Mine       | Inactive          | Yes; small    | Placer gold (Cox and Singer, 1986; model 39a)                                                      | Quaternary gravels reconcentrated from Tertiary continental rock, glacial deposits or older bedrock to the north in the Talkeetna quadrangle.  Samples are reported to contain up to 0.08% uranium and 0.03% thorium (Cobb,1979, OFR 80-86. p. 17).  Probably some small production prior to 1919. Drilling for possible dredging was done in the early 1900's.  Limited prospecting may have been done more recently.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | Drilling for possible dredging was done in the early 1900's.  Limited prospecting may have been done more recently.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | See other Kahiltna River occurrences in the Tyonek Quadrangle (ARDF numbers TY028 and TY029) and to the north in the Talkeetna Quadrangle.                                                                                                                     | Bates, R.G., and Wedow, Helmuth, Jr., 1953, Preliminary summary review of thorium-bearing mineral occurrences in Alaska:  U.S. Geological Survey Circular 202, 13 p. ��Carnes, D.R., 1976, Active Alaskan placer operations, 1975:  U.S. Bureau of Mines Open-File Report 98-76, 90 p., 40 plates, scale 1:250,000.��Cobb, E.H., 1972, Metallic mineral resources map of the Tyonek quadrangle, Alaska:  U.S. Geological Survey Miscellaneous Field Studies Map MF-385, 1 sheet, scale 1:250,000.    ��Cobb, E.H., 1979, Summary of references to mineral occurrences (other than minerals fuels and construction materials) in the Kenai and Tyonek Quadrangles, Alaska:  U.S. Geological Survey Open-File Report 80-86, 36 p.��Joesting, H.R., 1942, Strategic mineral occurences in interior Alaska:  Alaska Territorial Department of Mines Pamphlet 1, 46 p.��MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��Mertie, J.B., Jr., 1919, Platinum-bearing gold placers of the Kahiltna Valley:  U.S. Geological Survey Bulletin 692-D, p. 233-264.��Overstreet, W.C., 1967, The geologic occurrence of monazite:  U.S. Geological Survey Professional Paper 530, 327 p.��Smith, P.S., 1930, Mineral industry of Alaska in 1928:  U.S. Geological Survey Bulletin 813-A, p. 1-72. ��U.S. Bureau of Mines, 1973, Alaska 1:250,000-scale quadrangle map overlays showing mineral deposit locations, principal minerals, and number and type of claims:  U.S. Bureau of Mines Open-File Report 20-73, 95 overlays (updated in 1986, 1987).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | TY027       | Madelyn A. Millholland (Anchorage), James Riehle (USGS)                                     | 6/1/1998         | A011829                   | Quaternary                                                                                                                                                          |                      | 39a                  |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | Cobb, 1979 (OFR 80-86)                                          |
| Kahiltna River                                     | Au                 | TY       | D-2        | 61.93    | 150.69    | MacKevett and Holloway (1977, locality 6) locate this placer prospect as covering approximately four miles along the Kahlitna River centered at about the middle of Section 11 in T. 22 N, R. 18 W. (U.S. Bureau of Mines, 1998, MAS # 0020840001; Cobb, 1979, MF 385, locality 6; U.S. Bureau of Mines, 1973, localites 58, 68, and 70; and Carnes, 1976, localities 1, 2 and 3).  This site is a continuation of the placers upstream described at ARDF TY027 and downstream of ARDF TY029.      | Pt, REE, Sn, Th, Ti, U,  W,  Zr | Cassiterite, monazite, native gold, platinum, rutile, scheelite, uranothorianite                                               | Garnet, HEMATITE, ILMENITE, Magnetite, QUARTZ, SPHENE, TOURMALINE, zircon | Mine       | Probably inactive | Yes; small    | Placer gold (Cox and Singer, 1986; model 39a)                                                      | Quaternary gravels reconcentrated from Tertiary continental rock, glacial deposits or older bedrock to the north in the Talkeetna Quad.  Samples are reported to contain up to 0.08% uranium and 0.03% thorium (Cobb, 1979, OFR 80-86, p. 17).  Probably some small production prior to 1919. Drilling for possible dredging was done in the early 1900's.  Limited prospecting may have been done more recently.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | Probably some small production prior to 1919. Drilling for possible dredging was done in the early 1900's.  Limited prospecting may have been done more recently.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | See Kahiltna River occurrences in the Tyonek Quadrangle (ARDF numbers TY027 and TY029) and to the north in the Talkeetna Quadrangle.                                                                                                                           | �Bates, R.G., and Wedow, Helmuth, Jr., 1953, Preliminary summary review of thorium-bearing mineral occurrences in Alaska:  U.S. Geological Survey Circular 202, 13 p. ��Carnes, D.R., 1976, Active Alaskan placer operations, 1975:  U.S. Bureau of Mines Open-File Report 98-76, 90 p., 40 plates, scale 1:250,000.��Cobb, E.H., 1972, Metallic mineral resources map of the Tyonek quadrangle, Alaska:  U.S. Geological Survey Miscellaneous Field Studies Map MF-385, 1 sheet, scale 1:250,000.    ��Cobb, E.H., 1979, Summary of references to mineral occurrences (other than minerals fuels and construction materials) in the Kenai and Tyonek Quadrangles, Alaska:  U.S. Geological Survey Open-File Report 80-86, 36 p.��Joesting, H.R., 1942, Strategic mineral occurences in interior Alaska:  Alaska Territorial Department of Mines Pamphlet 1, 46 p.��MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��Mertie, J.B., Jr., 1919, Platinum-bearing gold placers of the Kahiltna Valley:  U.S. Geological Survey Bulletin 692-D, p. 233-264.��Overstreet, W.C., 1967, The geologic occurrence of monazite:  U.S. Geological Survey Professional Paper 530, 327 p.��Smith, P.S., 1930, Mineral industry of Alaska in 1928:  U.S. Geological Survey Bulletin 813-A, p. 1-72. ��U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | TY028       | Madelyn A. Millholland (Anchorage), James Riehle (USGS)                                     | 6/1/1998         | A010585                   | Quaternary                                                                                                                                                          |                      | 39a                  |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | MacKevett and Holloway, 1977                                    |
| Kahiltna River                                     | Au                 | TY       | D-2        | 61.89    | 150.69    | MacKevett and Holloway (1977, locality 7) locate this placer prospect  upstream about three and a half miles from the confluence of the Kahiltna and Yentna Rivers.  The prospect area cover an approximate three mile stretch along the Kahlitna River centered at about the middle of the boundary between Sections 23 and 26, T. 22 N., R. 8 W. (U.S. Bureau of Mines , 1973, locality 71).  This is a continuation of the placers along the same river described in ARDF TY028 and ARDF TY027. | Pt, REE, Sn, Th, Ti, U,  W,  Zr | Cassiterite, monazite, native gold, platinum,  rutile, scheelite, uranothorianite                                              | Garnet, HEMATITE, ILMENITE, Magnetite, QUARTZ, SPHENE, TOURMALINE, zircon | Mine       | Probably inactive | Yes; small    | Placer gold (Cox and Singer, 1986; model 39a)                                                      | Quaternary gravels reconcentrated from Tertiary continental rock, glacial deposits or older bedrock to the north in the Talkeetna quadrangle.  Samples are reported to contain up to 0.08% uranium and 0.03% thorium (Cobb, 1979, OFR 80-86, p. 17).  Probably some minor production prior to 1919.  Drilling for possible dredging was done in the early 1900's.  Limited prospecting may have been done more recently.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | Probably some minor production prior to 1919.  Drilling for possible dredging was done in the early 1900's.  Limited prospecting may have been done more recently.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | This placer occurrence is the southern most mine along the Kahiltna River;  two other localities, know as Kahiltna River, are upstream in the Tyonek Quadrangle.  Placer occurrences extend to the north along the Kahiltna River in the Talkeetna Quadrangle. | Bates, R.G., and Wedow, Helmuth, Jr., 1953, Preliminary summary review of thorium-bearing mineral occurrences in Alaska:  U.S. Geological Survey Circular 202, 13 p. ��Cobb, E.H., 1972, Metallic mineral resources map of the Tyonek quadrangle, Alaska:  U.S. Geological Survey Miscellaneous Field Studies Map MF-385, 1 sheet, scale 1:250,000.    ��Cobb, E.H., 1979, Summary of references to mineral occurrences (other than minerals fuels and construction materials) in the Kenai and Tyonek Quadrangles, Alaska:  U.S. Geological Survey Open-File Report 80-86, 36 p.��Joesting, H.R., 1942, Strategic mineral occurences in interior Alaska:  Alaska Territorial Department of Mines Pamphlet 1, 46 p.��MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska:  U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.��Mertie, J.B., Jr., 1919, Platinum-bearing gold placers of the Kahiltna Valley:  U.S. Geological Survey Bulletin 692-D, p. 233-264.��Overstreet, W.C., 1967, The geologic occurrence of monazite:  U.S. Geological Survey Professional Paper 530, 327 p.��Smith, P.S., 1930, Mineral industry of Alaska in 1928:  U.S. Geological Survey Bulletin 813-A, p. 1-72. ��U.S. Bureau of Mines, 1973, Alaska 1:250,000-scale quadrangle map overlays showing mineral deposit locations, principal minerals, and number and type of claims:  U.S. Bureau of Mines Open-File Report 20-73, 95 overlays (updated in 1986, 1987).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | TY029       | Madelyn A. Millholland (Anchorage), James Riehle (USGS)                                     | 6/1/1998         | M045414                   | Quaternary                                                                                                                                                          |                      | 39a                  |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | MacKevett and Holloway, 1977                                    |
| Unnamed                                            | Au                 | TY       | D-1        | 61.93    | 150.36    | Placer prospect is located approximately one-eighth of a  mile southeast of Neil Lake in Section 10, T. 21N., R. 6 W. (U.S. Bureau of Mines, 1998, MAS # 20840019).                                                                                                                                                                                                                                                                                                                                |                                 | Native gold?                                                                                                                   |                                                                           | Prospect   | Probably inactive | Undetermined. | Placer gold (Cox and Singer, 1986; model 39a).                                                     | No geologic description ihas been published for this site.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |                                                                                                                                                                                                                                                                | U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | TY030       | Madelyn A. Millholland (Anchorage)                                                          | 6/1/1998         | A106262                   | Quaternary.                                                                                                                                                         |                      | 39a                  |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | U.S. Bureau of Mines (1998)                                     |
| Train                                              | Ag, Au             | TY       | D-8        | 61.8314  | 152.9157  | The center of the Train prospect is about 1.5 miles south of Mount Estelle; it is about 0.5 mile south of the center of section 9, T 20 N., R. 20 W.  The location is accurate.                                                                                                                                                                                                                                                                                                                    | Cu, Pb, Zn                      | Arsenopyrite, pyrite (and probably others)                                                                                     | Quartz, tourmaline                                                        | Prospect   | Active            | None          | Gold-arsenopyrite-quartz veins, stockworks, and breccias.                                          | The Train prospect is near the periphery of the Cretaceous (65-66 Ma) Mount Estelle pluton, which is zoned  from a granite core to marginal phases of quartz monzonite, quartz monzodiorite, augite monzodiorite, diorite and lamprophyric mafic and ultramafic rocks (Reed and Elliott, 1970; Millholland, 1995; Crowe and others, 1991; Crowe and Millholland, 1990).  The pluton intrudes Jurassic and Cretaceous sedimentary rocks that are hornfelsed adjacent to the pluton, are locally stained red, and have been altered to sericite and clay. Pyrite occurs as disseminations and along fractures.�   There was considerable work in the area by government and industry as far back as the 1970's that identified mineralization, but the work was more general than prospect specific (see TY019). From 2005 to 2008, several companies-- Hidefield Gold Plc. (2008), International Tower Hill Mines Ltd. (2007) and  Millrock Resources Inc. (2008)--have defined several specific prospects in the area, including the Train prospect and the nearby Shoeshine prospect (TY032)  Millrock is currently (2008) exploring the deposit as part of its Estelle project that covers a large block of claims north and south of Mount Estelle.�   International Tower Hills collected a sample of a quartz-sulfide vein at the Train prospect that contained 57 parts per million (ppm) gold, 212 ppm silver, 3.6 ppm copper, and 0.3 ppm lead.  The vein trends north and dips steeply.  Millrock collected numerous samples along a north- to north-northeast trending zone about 1.5 miles long; many of the samples contained more than 2 grams of gold per ton.  Of the 83 samples they collected, the average gold content was 7.61 grams per tonne; the minimum was 0.01 gram per ton, and the highest was 56.9 grams per tonne. The possible porphyry-style mineralization consists mainly of  quartz-arsenopyrite veins; auriferous quartz stockworks; and breccia zones cemented by quartz, oxidized sulfides, and tourmaline.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | Limited sampling by a succession of companies since the 1970's.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |                                                                                                                                                                                                                                                                | Crowe, D.E., and Millholland, M.A., 1990, High-grade gold mineralization associated with high salinity hydrothermal fluids, Mt. Estelle pluton, central Alaska Range [abs.]:  Geological Society of America, Abstracts with Programs, v. 22, p. A41.��Crowe, D.E., Millholland, M.A., and Brown, P.E., 1991, Precious and base metal mineralization associated with high-salinity hydrothermal fluids in the Mount Estelle pluton, south-central Alaska:  Economic Geology, v. 86, p. 1103-1109.��Hidefield Gold Plc., 2008, South Estelle: http://www.hidefieldgold.com/s/SouthEstelle.asp (as of May 25, 2008)��International Tower Hill Mines Ltd., 2007, ITH further defines mineralization at South Estelle: http://www.ithmines.com/s/NewsReleases.asp?ReportID=267305&_Type=News-Releases&_Title=ITH-Further-Defines-Mineralization-at-South-Estelle (News release, October 18, 2007) ��Millrock Resources Inc., 2008, Estelle: http://www.millrockresources.com/index.php/projects/estelle/ (as of May 25, 2008).��Millholland, M.A., 1995, Geology and discovery at Mount Estelle: Newsletter of the Alaska Geological Society, v. 24, no. 8, p. 1. ��Reed, B.L., and Elliott, R.L., 1970, Reconnaissance geologic map, analyses of bedrock and stream sediment samples, and an aeromagnetic map of parts of the southern Alaska Range:  U.S. Geological Survey Open-file Report 70-271, 24 p., 4 sheets, scale 1:250,000.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | TY031       | D.J. Grybeck (Port Ludlow, WA)                                                              | 6/5/2008         |                           | Later than the 65-66 Ma Mount Estelle pluton that hosts the mineralization; may be genetically related to the pluton.                                               |                      |                      | The alteration associated with the quartz veins, stockworks, and breccia is not specifically noted.                                                                                                                                                                                                                |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | Crowe and others, 1991; Millrock Resources Inc., 2008 (Estelle) |
| Shoeshine                                          | Ag, Au             | TY       | D-8        | 61.8278  | 152.8875  | The Shoeshine prospect is on the east-facing slopes of peak 6952, about 2.0 miles southeast of Mount Estelle.  Its center is about 0.4 mile northwest of  the center of section 15,  T. 20 N., R. 20 W.  The location is accurate.                                                                                                                                                                                                                                                                 | Cu, Pb, Zn                      | Arsenopyrite (and probably others)                                                                                             | Quartz                                                                    | Prospect   | Active            | None          | Auriferous, arsenopyrite-quartz veins, stockworks, and breccias.                                   | The Shoeshine prospect is in the Cretaceous (65-66 Ma) Mount Estelle pluton, which is zoned  from a granite core to marginal phases of quartz monzonite, quartz monzodiorite, augite monzodiorite, diorite and lamprophyric mafic and ultramafic rocks (Reed and Elliott, 1970; Millholland, 1995; Crowe and others, 1991; Crowe and Millholland, 1990).  The pluton intrudes Jurassic and Cretaceous sedimentary rocks that are hornfelsed adjacent to the pluton, are  locally stained red,  and have been altered to sericite and clay. Pyrite occurs as disseminations and along fractures.�   There was considerable work in the area by government and industry as far back as the 1970's that identified mineralization, but the work was more general than prospect specific (see TY019). From 2005 to 2008, several companies-- Hidefield Gold Plc. (2008), International Tower Hill Mines Ltd. (2007), and  Millrock Resources Inc. (2008)--have defined several specific prospects in the area, including the Shoeshine.  Millrock is currently (2008) exploring the deposit as part of its Estelle project which covers a large block of claims north and south of Mount Estelle.�   International Tower Hills collected 3 samples of quartz-sulfide veins at the Shoeshine prospect that contained 63 to 238  parts per million (ppm) gold, 14 to 389 ppm silver, 0.3 to 1.0 ppm copper, and 0.0 to 2.0 ppm lead.  The veins trend north-northwest and dip steeply to the northeast or southwest. Millrock collected numerous samples in an area about 3,500 feet by 2,500 feet in size on the east slope of peak 6952; many of the samples contained more than 2.0 grams of gold per ton. Of the 58 samples they collected, the average gold content was 5.29 grams per tonne; the minimum was 0.09 gram of gold per tonne, and the highest value was 238.0 grams of gold per tonne. The possible porphyry-style mineralization consists mainly of  quartz-arsenopyrite veins; auriferous quartz stockworks; and breccia zones cemented by quartz, oxidized sulfides, and tourmaline.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | There was considerable work in the area by government and industry as far back as the 1970's that identified mineralization, but the work was more general than prospect specific (see TY019). From 2005 to 2008, several companies-- Hidefield Gold Plc. (2008), International Tower Hill Mines Ltd. (2007), and  Millrock Resources Inc. (2008)--have defined several specific prospects in the area, including the Shoeshine.  Millrock is currently (2008) exploring the deposit as part of its Estelle project which covers a large block of claims north and south of Mount Estelle.                                                                                                                                                                                                                                                                                                                                                                                                              |                                                                                                                                                                                                                                                                | Crowe, D.E., and Millholland, M.A., 1990, High-grade gold mineralization associated with high salinity hydrothermal fluids, Mt. Estelle pluton, central Alaska Range [abs.]:  Geological Society of America, Abstracts with Programs, v. 22, p. A41.��Crowe, D.E., Millholland, M.A., and Brown, P.E., 1991, Precious and base metal mineralization associated with high-salinity hydrothermal fluids in the Mount Estelle pluton, south-central Alaska:  Economic Geology, v. 86, p. 1103-1109.��Hidefield Gold Plc., 2008, South Estelle: http://www.hidefieldgold.com/s/SouthEstelle.asp (as of May 25, 2008)��International Tower Hill Mines Ltd., 2007, ITH further defines mineralization at South Estelle: http://www.ithmines.com/s/NewsReleases.asp?ReportID=267305&_Type=News-Releases&_Title=ITH-Further-Defines-Mineralization-at-South-Estelle (News release, October 18, 2007). ��Millrock Resources Inc., 2008, Estelle: http://www.millrockresources.com/index.php/projects/estelle/ (as of May 25, 2008).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | TY032       | D.J. Grybeck (Port Ludlow, WA)                                                              | 3/4/2008         |                           |                                                                                                                                                                     |                      |                      |                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                | Millrock Resources Inc., 2008 (Estelle)                         |
| Rainmaker                                          | Ag, Au, Cu, Pb, Zn | TY       | D-7        | 61.9557  | 152.6082  | The center of the Rainmaker prospect is about 1.6 miles southwest of the mouth of Portage Creek on the Skwentna River and about 0.3 miles northeast of the center of section 32, T. 22 N., R 18 W. The location is accurate.                                                                                                                                                                                                                                                                       |                                 | Chalcopyrite, galena, gold , sphalerite                                                                                        | Carbonates, quartz                                                        | Prospect   | Active            | None          | Gold-copper porphyry (Cox and Singer, 1986; model 20c).                                            | The Raintree prospect is one of several gold-copper porphyry deposits that  forms a belt that trends north-northwest for at least 9 miles (Wahl and others, 2008; Kiska Metals Corporation, 2010). The best known is the Whistler deposit (TY022), about two and half miles to the west-northwest. Relatively little detail is available on the Raintree prospect; it is largely covered by surficial material,  but it is probably similar to Whistler deposit.  The rocks in the vicinity are mainly extrusive  porphyritic andesite cut by porphyritic diorite dikes.�   Cominco Alaska began mineral exploration in the area in 1986 but they ended their work in 1989. From 2004 to 2006, Kennecott Exploration Company was active in the area  and staked several large blocks of claims that included the Raintree prospect. Geoinformatics Exploration Inc. acquired the property from Kennecott, and in 2009, Kiska Metals Corporation, the current (2010) holder of the claims, was formed by a merger of Geoinformatics and Rimfire Minerals Corporation.�   There are at least 7 holes drilled on the Raintree prospect, several drilled before 2008. In 2008, Geoinformatics drilled at least one hole on Raintree.  A 184-meter intercept contained 0.44 grams of gold per tonne and 0.16 percent copper.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | The prospect is at the southern end of a belt of porphyry gold-copper mineralization that  has been extensively explored by several companies since the early 1980s. In early 2010, it was being actively explored by Kiska Metals Corporation.  At least 7 holes have been drilled, the most recent in 2008.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |                                                                                                                                                                                                                                                                | Geoinformatics Exploration Inc., 2008, Geoinformatics provides update on regional targeting at Whistler project: http://www.kiskametals.com/i/pdf/2008-02-29_NR.pdf ( News release, February 29, 2008). ��Kiska Metals Corporation, 2010,  Whistler project overview; http://www.kiskametals.com/s/Whistler.asp?ReportID=370036, as of February 26, 2010).��Wahl, George, Coutture, Jean-Francois, and Keller, GD., 2008,  Mineral resource estimation, Whistler copper-gold project, Alaska Range, Alaska: Technical report for Geoinformatics Exploration, Inc., 124 p., (posted on www.sedar.com,  February 22, 2008).��Wilson, F.H., Hults, C.P., Schmoll, H.R., Haeussler, P.J., Schmidt, J.M., Yehle, L.A., and Labay, K.A.,  2009, Preliminary geologic map of the cook Inlet region, Alaska:  U.S. Geological Survey Open-File report  209-1108, 99 p., 2 sheets, scale 1:250,000.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | TY033       | D.J. Grybeck (Contractor, U.S. Geological Survey)                                           | 4/2/2010         |                           | Early or middle Tertiary; mineralization is interpreted to be coeval with or younger than the Tertiary volcanic, host rocks.                                        |                      | 20c                  | Not stated but probably similar to the nearby Whistler deposit (TY022).                                                                                                                                                                                                                                            | None.                                                                                                                                                                                                                                                                                                                    | None.                                                                                                                                                                                                                                                                                                                                                                                                          | Wahl and others, 2008                                           |
| Muddy Creek West                                   | Ag, Au             | TY       | D-8        | 61.8521  | 152.8623  | The center of the Muddy Creek West prospect is about 1.8 miles east of Mount Estelle and about 0.4 mile west of the center of section 2, T. 20 N., R. 20 W.  The location is accurate.                                                                                                                                                                                                                                                                                                             |                                 | Gold                                                                                                                           |                                                                           | Prospect   | Active            | None          | '...high-grade gold-silver and base metals...'  mineralization.                                    | The date of the discovery of the Muddy Creek West prospect is uncertain; it probably was sometime between 1986 to 1989 when Cominco Alaska worked in the area (Wahl and others, 2008).  Kennecott Exploration Company was active from 2004 to 2006 and staked a large block of claims that covered the Muddy Creek West prospect.  Geoinformatics Exploration Inc. acquired the property from Kennecott in 2007, and in 2009, Kiska Metals Corporation was formed by a merger of Geoinformatics and Rimfire Minerals Corporation. In  early 2010, Kiska Metals (2010a) was actively exploring their claim block as part of their Whistler project.�   The Muddy Creek West prospect covers a north-northwest trending area about 1 kilometer by 4 kilometers in size (Kiska Metals Corporation, 2010b).  Numerous rock samples were collected at the prospect. A high percentage of them contained more than 1 gram of gold per tonne, 10 contained more than 5 grams of gold per tonne, and the best sample contained 56.60 grams of gold per tonne. There is little information on the prospect other than that it and the other prospects in the Muddy Creek area have  'high-grade gold-silver and base metals' and that the host rocks in the area are monzonite, monzonite porphyry, and biotite monzonite.  These are probably part of the Mount Estelle pluton to the east (Wilson and others, 2009) that Reed and Lanphere (1972) dated at 65 to 66 Ma. See ARDF record TY019 for a general description of the mineralization associated with the Mount Estelle pluton.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | Apparently only surface sampling.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                                                                                | Kiska Metals Corporation, 2010a,  Whistler project overview; http://www.kiskametals.com/s/Whistler.asp?ReportID=370036 (as of February 26, 2010).��Kiska Metals Corporation, 2010b, Geoinformatics portfolio - Muddy Creek, Alaska:  http://www.kiskametals.com/s/MuddyCreek.asp (as of February 27, 2010)��Reed, B.L., and Elliott, R.L., 1970, Reconnaissance geologic map, analyses of bedrock and stream sediment samples, and an aeromagnetic map of parts of the southern Alaska Range:  U.S. Geological Survey Open-file Report 70-271, 24 p., 4 sheets, scale 1:250,000.��Reed, B.L., and Lanphere, M.A., 1972, Generalized geologic map of the Alaska-Aleutian range batholith showing potassium-argon ages of the plutonic rocks:  U.S. Geological Survey Miscellaneous Field Studies Map MF-372, 2 sheets, scale 1:1,000,000.��Wahl, George, Coutture, Jean-Francois, and Keller, GD., 2008,  Mineral resource estimation, Whistler copper-gold project, Alaska Range, Alaska: Technical report for Geoinformatics Exploration, Inc., 124 p. (posted on www.sedar.com,  February 22, 2008).��Wilson, F.H., Hults, C.P., Schmoll, H.R., Haeussler, P.J., Schmidt, J.M., Yehle, L.A., and Labay, K.A.,  2009, Preliminary geologic map of the Cook Inlet region, Alaska:  U.S. Geological Survey Open-File report  209-1108, 99 p., 2 sheets, scale 1:250,000.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | TY034       | D.J. Grybeck (Contractor, U.S. Geological Survey)                                           | 4/2/2010         |                           | Probably coeval with or younger than the 65 to 66 Ma Mount Estelle pluton.                                                                                          |                      |                      | Not mentioned.                                                                                                                                                                                                                                                                                                     | None.                                                                                                                                                                                                                                                                                                                    | None.                                                                                                                                                                                                                                                                                                                                                                                                          | Kiska Metals Corporation, 2010b                                 |
| Muddy Creek Central                                | Ag, Au             | TY       | D-8        | 61.8455  | 152.85051 | The center of the Muddy Creek Central prospect is about 2.2 miles east-southeast of Mount Estelle and about 0.4 mile southwest of elevation 4785. It is 0.5 mile south of the center of section 2, T. 20 N., R. 20 W.  The location is accurate.                                                                                                                                                                                                                                                   |                                 | Gold                                                                                                                           |                                                                           | Prospect   | Active            | None          | '...high-grade gold-silver and base metals...'  mineralization.                                    | The date of the original discovery of the Muddy Creek Central prospect is uncertain; it probably was discovered when Cominco Alaska worked in the area from 1986 to 1989 (Wahl and others, 2008).  Kennecott Exploration Company was active  in the area from 2004 to 2006 and staked a large block of claims that covered the Muddy Creek Central prospect.  Geoinformatics Exploration Inc. acquired the property from Kennecott in 2007, and in 2009, Kiska Metals Corporation was formed by a merger of Geoinformatics and Rimfire Minerals Corporation. As of early 2010, Kiska Metals (2010a) was actively exploring their claim blocks as the Whistler project.�   The Muddy Creek Central prospect covers a north-northwest trending area about 1 kilometer by 2 kilometers in size (Kiska Metals Corporation, 2010b).  Numerous rock samples were collected in the area. A high percentage of them contained more than 1 gram of gold per tonne, 8 contained more than 5 grams of gold per tonne, and the two best sample contained 81.1 and 111.5 grams of gold per tonne. There is little more information on the prospect other than it and their other prospects in the Muddy Creek area have  'high-grade gold-silver and base metals' and the rocks in the area consist of monzonite and biotite monzonite.  These are probably part of the Mount Estelle pluton to the east (Wilson and others, 2009) that Reed and Lanphere (1972) dated at 65 to 66 Ma. See ARDF record TY019 for a general description of the mineralization associated with the Mount Estelle pluton in this area.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | Apparently only surface sampling.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                                                                                | Kiska Metals Corporation, 2010a,  Whistler project overview; http://www.kiskametals.com/s/Whistler.asp?ReportID=370036 (as of February 26, 2010).��Kiska Metals Corporation, 2010b, Geoinformatics portfolio - Muddy Creek, Alaska:  http://www.kiskametals.com/s/MuddyCreek.asp (as of February 27, 2010).��Reed, B.L., and Elliott, R.L., 1970, Reconnaissance geologic map, analyses of bedrock and stream sediment samples, and an aeromagnetic map of parts of the southern Alaska Range:  U.S. Geological Survey Open-file Report 70-271, 24 p., 4 sheets, scale 1:250,000.��Wahl, George, Coutture, Jean-Francois, and Keller, GD., 2008,  Mineral resource estimation, Whistler copper-gold project, Alaska Range, Alaska: Technical report for Geoinformatics Exploration, Inc., 124 p. (posted on www.sedar.com,  February 22, 2008).��Wilson, F.H., Hults, C.P., Schmoll, H.R., Haeussler, P.J., Schmidt, J.M., Yehle, L.A., and Labay, K.A.,  2009, Preliminary geologic map of the Cook Inlet region, Alaska:  U.S. Geological Survey Open-File report  209-1108, 99 p., 2 sheets, scale 1:250,000.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | TY035       | D.J. Grybeck (Contractor, U.S. Geological Survey)                                           | 4/2/2010         |                           | Probably coeval with or younger than the 65 to 66 Ma Mount Estelle pluton.                                                                                          |                      |                      | Not mentioned.                                                                                                                                                                                                                                                                                                     | None.                                                                                                                                                                                                                                                                                                                    | None.                                                                                                                                                                                                                                                                                                                                                                                                          | Kiska Metals Corporation, 2010b                                 |
| Bonanza                                            | Ag, Au             | TY       | D-8        | 61.8346  | 152.83    | The Bonanza prospect is about 3.2 miles east-southeast of Mount Estelle and about 0.5 mile southwest of the center of section 12, T. 20 N., R. 20 W.  The location is accurate.                                                                                                                                                                                                                                                                                                                    |                                 | Gold                                                                                                                           |                                                                           | Prospect   | Active            | None          | '...high-grade gold-silver and base metals...'  mineralization.                                    | The date of the original discovery of the Bonanza prospect is uncertain; it probably was discovered when Cominco Alaska worked in the area from 1986 to 1989 (Wahl and others, 2008).  Kennecott Exploration Company was active  in the area from 2004 to 2006 and staked a large block of claims that covered the Bonanza prospect.  Geoinformatics Exploration Inc. acquired the property from Kennecott in 2007, and in 2009, Kiska Metals Corporation was formed by a merger of Geoinformatics and Rimfire Minerals Corporation. As of early 2010, Kiska Metals (2010a) was actively exploring their claim blocks as the Whistler project.�   The Bonanza prospect is along about 600 meters of the contact of diorite with hornfelsed sediments (Kiska Metals Corporation, 2010b). Twenty samples were collected. Eleven contained more than 1 gram of gold per tonne and the best contained 69.12 grams of gold per tonne.  There is little more information on the prospect other than it and their other prospects in the Muddy Creek area have  'high-grade gold-silver and base metals' and the  rocks in the general area consist of monzonite porphyry and hornfels. The plutonic rocks are probably part of the Mount Estelle pluton to the east (Wilson and others, 2009) that Reed and Lanphere (1972) dated at 65 to 66 Ma. See ARDF record TY019 for a general description of the mineralization associated with the Mount Estelle pluton in this area.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | Apparently only surface sampling.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                                                                                | Kiska Metals Corporation, 2010a,  Whistler project overview; http://www.kiskametals.com/s/Whistler.asp?ReportID=370036 (as of February 26, 2010).��Kiska Metals Corporation, 2010b, Geoinformatics portfolio - Muddy Creek, Alaska:  http://www.kiskametals.com/s/MuddyCreek.asp (as of February 27, 2010).��Reed, B.L., and Elliott, R.L., 1970, Reconnaissance geologic map, analyses of bedrock and stream sediment samples, and an aeromagnetic map of parts of the southern Alaska Range:  U.S. Geological Survey Open-file Report 70-271, 24 p., 4 sheets, scale 1:250,000.��Wahl, George, Coutture, Jean-Francois, and Keller, GD., 2008,  Mineral resource estimation, Whistler copper-gold project, Alaska Range, Alaska: Technical report for Geoinformatics Exploration, Inc., 124 p. (posted on www.sedar.com,  February 22, 2008).��Wilson, F.H., Hults, C.P., Schmoll, H.R., Haeussler, P.J., Schmidt, J.M., Yehle, L.A., and Labay, K.A.,  2009, Preliminary geologic map of the Cook Inlet region, Alaska:  U.S. Geological Survey Open-File report  209-1108, 99 p., 2 sheets, scale 1:250,000.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | TY036       | D.J. Grybeck (Contractor, U.S. Geological Survey)                                           | 4/2/2010         |                           | Probably coeval with or younger than the 65 to 66 Ma Mount Estelle pluton.                                                                                          |                      |                      | Not mentioned.                                                                                                                                                                                                                                                                                                     | None.                                                                                                                                                                                                                                                                                                                    | None.                                                                                                                                                                                                                                                                                                                                                                                                          | Kiska Metals Corporation, 2010b                                 |
| Stockwork                                          | Ag, Au             | TY       | D-8        | 61.8458  | 152.805   | The Stockwork prospect is about 3.8 miles east of Mount Estelle near the southeast corner of section 1, T. 20 N., R. 20 W.  The location is accurate.                                                                                                                                                                                                                                                                                                                                              |                                 | Gold                                                                                                                           |                                                                           | Prospect   | Active            | None          | '...high-grade gold-silver and base metals...'  mineralization.                                    | The date of the original discovery of the Stockwork prospect is uncertain; it probably was discovered when Cominco Alaska worked in the area from 1986 to 1989 (Wahl and others, 2008). Kennecott Exploration Company was active  in the area from 2004 to 2006 and staked a large block of claims that covered the Stockwork prospect. Geoinformatics Exploration Inc. acquired the property from Kennecott in 2007, and in 2009, Kiska Metals Corporation was formed by a merger of Geoinformatics and Rimfire Minerals Corporation. As of early 2010, Kiska Metals (2010a) was actively exploring their claim blocks as the Whistler project.�   The Stockwork prospect  is a  north-northeast trending area about 1,000 meters long (Kiska Metals Corporation, 2010b). Of the numerous samples that were collected, four contained 0.52 to 4.64 grams of gold per tonne. There is little more information on the prospect other than it and their other prospects in the Muddy Creek area have  'high-grade gold-silver and base metals' and the  rocks in the general area consist of monzonite porphyry and hornfels. The plutonic rocks are probably part of the Mount Estelle pluton to the east (Wilson and others, 2009) that Reed and Lanphere (1972) dated at 65 to 66 Ma. See ARDF record TY019 for a general description of the mineralization associated with the Mount Estelle pluton in this area.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Apparently only surface sampling.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                                                                                | Kiska Metals Corporation, 2010a,  Whistler project overview; http://www.kiskametals.com/s/Whistler.asp?ReportID=370036 (as of February 26, 2010).��Kiska Metals Corporation, 2010b, Geoinformatics portfolio - Muddy Creek, Alaska:  http://www.kiskametals.com/s/MuddyCreek.asp (as of February 27, 2010).��Reed, B.L., and Elliott, R.L., 1970, Reconnaissance geologic map, analyses of bedrock and stream sediment samples, and an aeromagnetic map of parts of the southern Alaska Range:  U.S. Geological Survey Open-file Report 70-271, 24 p., 4 sheets, scale 1:250,000.��Wahl, George, Coutture, Jean-Francois, and Keller, GD., 2008,  Mineral resource estimation, Whistler copper-gold project, Alaska Range, Alaska: Technical report for Geoinformatics Exploration, Inc., 124 p. (posted on www.sedar.com,  February 22, 2008).��Wilson, F.H., Hults, C.P., Schmoll, H.R., Haeussler, P.J., Schmidt, J.M., Yehle, L.A., and Labay, K.A.,  2009, Preliminary geologic map of the Cook Inlet region, Alaska:  U.S. Geological Survey Open-File report  209-1108, 99 p., 2 sheets, scale 1:250,000.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | TY037       | D.J. Grybeck (Contractor, U.S. Geological Survey)                                           | 4/2/2010         |                           | Probably coeval with or younger than the 65 to 66 Ma Mount Estelle pluton.                                                                                          |                      |                      | Not mentioned.                                                                                                                                                                                                                                                                                                     | None.                                                                                                                                                                                                                                                                                                                    | None.                                                                                                                                                                                                                                                                                                                                                                                                          | Kiska Metals Corporation, 2010b                                 |
| Raintree                                           |                    | TY       | D-7        | 61.9769  | 152.6072  | The Raintree prospect is about 1.6 miles northwest of the mouth of Portage Creek on the Skwentna River and about 0.6 mile southeast of the center of section 20, T. 22 N.,  R 18 W. The location is accurate.                                                                                                                                                                                                                                                                                      |                                 | Chalcopyrite, galena, gold , sphalerite                                                                                        |                                                                           | Prospect   | Active            | None          | Gold-copper porphyry (Cox and Singer, 1986; model 20c).                                            | The Raintree prospect is one of several gold-copper porphyry deposits that  form a belt that trends north-northwest for at least 9 miles (Wahl and others, 2008; Kiska Metals Corporation, 2010). The best known is the Whistler deposit ( TY022) about  two and half miles to the west-southwest. Relatively little detail is available for the Raintree prospect. It is largely covered by surficial material but it is probably similar to the adjacent Whistler prospect TY022).  The rocks in the vicinity are mainly extrusive  porphyritic andesite cut by porphyritic diorite dikes.�   Cominco Alaska began mineral exploration in the area in 1986 but they ended their work in 1989. From 2004 to 2006, Kennecott Exploration Company was active in the area  and staked several large blocks of claims which included the Raintree prospect. Geoinformatics Exploration Inc. acquired the property from Kennecott, and in 2009, Kiska Metals Corporation, the current (2010) holder of the claims, was formed by a merger of Geoinformatics and Rimfire Minerals Corporation.�   There were several (shallow?) holes drilled at the Raintree prospect before 2008.  In 2008, Geoinformatics drilled two holes, including the first ever at Raintree West (Kiska Metals Corporation, 2008). The area is covered by up to 5 meters of gravel and the holes were sited using proprietary targeting techniques.  The first hole cut 160 meters that contained 0.59 gram of gold per tonne, 6.02 grams of silver per tonne, and 0.1 percent copper, and was entirely in porphyritic diorite. In 2009, Kiska drilled a 471.6-meter hole that cut  porphyritic andesite, porphyritic diorite, and trachyandesite; it bottomed in mineralization (Kiska Metals Corporation, 2009 and 2010).  The best intervals were 128.7 meters that contained 0.56 gram of gold per tonne, and 6.7 grams of silver per tonne;  and 97.2 meters that contained 0.61 gram of gold per tonne, 6.94 grams of silver per tonne, 0.16 percent copper, 0.25 percent lead, and 0.59 percent zinc. The entire hole averaged 0.38 gram of gold per tonne, 4.67 grams of silver per tonne, 0.09 percent copper, 0.15 percent lead, and 0.35 percent zinc. The late-stage lead- and zinc-bearing quartz-carbonate veins suggests that the drilling ended at the top of a gold-porphyry system distinct from the Whistler deposit (TY022).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | The area has been explored by several companies since the early 1980s and is currently (2010) one of the principal targets centers of attention of Kiska Metals Corporation's, Whistler project. Their work has included detailed mapping, geochemical and geophysical surveys, sampling, and at least 6 drill holes, including two in 2008 and another in 2009.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |                                                                                                                                                                                                                                                                | Kiska Metals Corporation, 2008, Geoinformatics announces new discovery at its Whistler project in Alaska:  http://www.kiskametals.com/s/Geo_Archive.asp?ReportID=357944  (News release, November 4, 2008).��Kiska Metals Corporation, 2009, Kiska intersects 471.6 metres of 0.93 g/t gold-equivalent at Raintree target, Whistler project , Alaska:  http://www.kiskametals.com/s/Kiska_News.asp?ReportID=376377 (News release, December 8, 2009).  ��Kiska Metals Corporation, 2010,  Whistler project overview; http://www.kiskametals.com/s/Whistler.asp?ReportID=370036 (as of February 26, 2010).��Wahl, George, Coutture, Jean-Francois, and Keller, GD., 2008,  Mineral resource estimation, Whistler copper-gold project, Alaska Range, Alaska: Technical report for Geoinformatics Exploration, Inc., 124 p. (posted on www.sedar.com,  February 22, 2008).��Wilson, F.H., Hults, C.P., Schmoll, H.R., Haeussler, P.J., Schmidt, J.M., Yehle, L.A., and Labay, K.A.,  2009, Preliminary geologic map of the Cook Inlet region, Alaska:  U.S. Geological Survey Open-File report  209-1108, 99 p., 2 sheets, scale 1:250,000.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | TY038       | D.J. Grybeck (Contractor, U.S. Geological Survey)                                           | 4/2/2010         |                           | Early or middle Tertiary; mineralization is interpreted to be coeval with or younger than the Tertiary volcanic, host rocks.                                        |                      | 20c                  | Phyllic alteration is noted widely around the prospect at the surface.                                                                                                                                                                                                                                             | None.                                                                                                                                                                                                                                                                                                                    | None.                                                                                                                                                                                                                                                                                                                                                                                                          | Kiska Metals Corporation, 2009                                  |