Boulder Creek

Mine, Undetermined

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale CH
Quadrangle map, 1:63,360-scale C-3
Latitude 67.5599
Longitude -148.4085
Nearby scientific data Find additional scientific data near this location
Location and accuracy This placer mine is on Boulder Creek which flows west into the North Fork Chandalar River; the mouth is is about a half mile north of Chandalar Lake. The mine is about 0.5 mile north of the center of section 34, T. 32 N., R. 4 W.

Geologic setting

Geologic description

Kurtak and others (2002) noted a trommel, loader, and a backhoe at a large area of tailings about a mile and a half from the mouth of Boulder Creek There was also a camp and airstrip nearby and they noted 'current mining operations'. Placer claims were active on Boulder Creek in 1969 and during the 1990s. Apparently the first mining on Boulder Creek was in 1989 (Bundtzen and others, 1990).
Geologic map unit (-148.411235093299, 67.5595126141586)
Mineral deposit model Placer Au (Cox and Singer, 1986; model 39a).
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration Kurtak and others (2002) noted a trommel, loader, and a backhoe at a large area of tailings about a mile and a half from the mouth of Boulder Creek There was also a camp and airstrip nearby and they noted 'current mining operations'. Placer claims were active on Boulder Creek in 1969 and during the 1990s. Apparently the first mining on Boulder Creek was in 1989 (Bundtzen and others, 1990).
Indication of production Yes
Reserve estimates None?
Production notes The first placer mining on Boulder Creek apparently was in 1989. There was probably mining in the late 1990s and possibly in the 2000s. The amount of gold that was produced is unknown.

Additional comments

MAS No. 0020310063

References

References

Kurtak, J.M., Klieforth, R.F., Clark, J.M., and Maclean, E.A., 2002, Mineral investigations in the Koyukuk mining district, northern Alaska, 2 vols.: Bureau of Land Management, Alaska Technical Report 50, 845 p.
Reporters J.M. Britton (Anchorage, Alaska); D.J. Grybeck (Contractor, U.S. Geological Survey)
Last report date 4/18/2010