Liberty Creek

Mine, Active

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale TC
Quadrangle map, 1:63,360-scale D-1
Latitude 63.89
Longitude -141.41
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Liberty Creek placer mine claim blocks are located near the center of Liberty Creek, and the approximate center of the claim blocks is about 2 miles to the west of the confluence of Dude Creek with Liberty Creek, in section 6, T. 24 N., R. 21 E., of the Copper River Meridian. The location of the placer mine is known to about 2.5 miles.

Geologic setting

Geologic description

The Liberty Creek placer mine was initially staked in 1934, and held for two years. In 1937, it was re-staked, and active from 1937 to 1941. It was staked again in 1977. In the 1930s, there was some hand placer mining at the site. The site is currently being mined for placer gold using mechanized methods (J.M. Messing, oral communication, 1998). The geology in the vicinity of Liberty Creek consists of Paleozoic and/or Precambrian biotite gneiss and schist (amphibolite facies), and a small area of greenschist-grade Paleozoic phyllite and schist (Foster, 1970; Foster and Keith, 1994).
Geologic map unit (-141.412260763692, 63.8896811248842)
Mineral deposit model Placer gold (Cox and Singer, 1986; model 39a)
Mineral deposit model number 39a
Age of mineralization Quaternary?

Production and reserves

Workings or exploration The site has been staked numerous times since 1934. It was initially staked in 1934, held for two years, and re-staked again in 1937. It was active from 1937 to 1941, and staked again in 1977. In the 1930s, there was some hand placer mining activity at the site. It is currently an active, mechanized, low-grade placer mine (J.M. Messing, oral communication, 1998).
Indication of production Yes
Production notes The mine had some small production during the 1930s. Mechanized mining began on a small scale in the 1970s. Larger scale mining was attempted in the early 1990s. The current activity is at a modest level (J.M. Messing, oral communication, 1998).

References

MRDS Number 10308371

References

Foster, H.L., and Keith, T.E.C., 1994, Geology of the Yukon-Tanana area of east-central Alaska: in Plafker, G. and Berg, H.C., eds, The geology of North America, vol. G-1, The geology of Alaska: Geological Society of America, p. 205-240.
Reporters C.E. Cameron (ADGGS)
Last report date 4/13/1999