Kahiltna River Mine (ARDF - TY029), Yentna Mining District, Matanuska-Susitna Borough, Alaska, USAi

Regional Level Types
Kahiltna River Mine (ARDF - TY029)	Mine
Yentna Mining District	Mining District
Matanuska-Susitna Borough	Borough
Alaska	State
USA	Country

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.
Location: 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.
Geology: 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.
Workings: 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.
Age: Quaternary

Commodities (Major) - Au; (Minor) - Pt, REE, Sn, Th, Ti, U, W, Zr
Development Status: Yes; small
Deposit Model: Placer gold (Cox and Singer, 1986; model 39a)

Other Databases

Link to USGS - Alaska:	TY029

Other Regions, Features and Areas containing this locality

References