Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu; Zn

Geographic location

Quadrangle map, 1:250,000-scale WI
Quadrangle map, 1:63,360-scale A-6
Latitude 67.1964
Longitude -152.7628
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Red occurrence is west of lower Mettenpherg Creek, about 5 to 6 miles north of the junction of Mettenpherg Creek and the Malamute Fork, Alatna River. Two small claim groups, approximately 1 to 1.5 miles apart in a north-south direction are shown by Dillon and others (1981, Plate 1 [AOF 133B]); the most northerly of these claim groups is inferred (from very scant data) to correspond to the Red property. The occurrence is near the center of the claim block at an elevation of about 2,150 feet, in the NE1/4 section 2, T. 27 N., R. 24 W.

Geologic setting

Geologic description

Almost no information is available on this property. It reportedly is a stratiform Cu-Zn occurrence in an area whose geology and geochemistry is similar to that in the Ambler District to the west (Grybeck, 1977, loc. 2). The area is underlain by Middle(?) Devonian, calcareous schist interbedded with quartz mica schist and marble (Brosge and Reiser, 1971). The Bureau of Land Management made an aerial reconnaissance of the area in the 1990s, but saw nothing to suggest the presence of mineralization (Kurtak and others, 2002). Bureau of Land Management data indicate that 8 claims were located in 1975 and abandoned by 1980 (Kurtak and others, 2002).
Geologic map unit (-152.765543642226, 67.19592428836)
Mineral deposit model Kuroko massive sulfide? (Cox and Singer, 1986; model 28a?).
Mineral deposit model number 28a?
Age of mineralization If any, Middle Devonian or younger based on the age of the host rocks.

Production and reserves

Workings or exploration Twenty-one lode claims were staked in 1975 (Grybeck, 1977). Bureau of Land Management data indicate that 8 claims were located in 1975 and abandoned in 1978 (Kurtak and others, 2002).
Indication of production None
Reserve estimates None.
Production notes None.

Additional comments

See also Roosevelt Creek (WI134).



Kurtak, J.M., Klieforth, R.F., Clark, J.M., and Maclean, E.A., 2002, Mineral investigations in the Koyukuk mining district, northern Alaska: Final Report: U.S. Bureau of Land Management Technical Report 50, v. 1 and 2, 845 p.
Maas, K.M., 1987, Maps summarizing land availability for mineral exploration and development in northern Alaska, 1986: U.S. Bureau of Mines Open-File Report 10-87, 33 quadrangle overlays.
Reporters J.M. Britton (Anchorage); D.J. Grybeck (Contractor, USGS)
Last report date 2/1/2011