Unnamed (south of Polychrome Pass)

Prospect, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale HE
Quadrangle map, 1:63,360-scale B-6
Latitude 63.5
Longitude -149.92
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is at an elevation of about 4,400 feet, east of upper Toklat River and about a mile south-southeast of Polychrome Pass. The map site is just north of the center of sec. 29, T. 16 S., R. 12 W., of the Fairbanks Meridian. Access to the site is from the McKinley Park road. The location is accurate to within 1 mile.

Geologic setting

Geologic description

The country rocks in the area of this prospect are the Paleocene Cantwell Formation, which consists of andesite, basalt, rhyolite and dacite flows, pyroclastic rocks, a few interbeds of sandstone and a few small bodies of related subvolcanic intrusive rocks. Little information about this deposit has been made public. Apparently, it consists of auriferous quartz veins in the Paleocene volcanic rocks.
Geologic map unit (-149.922289257279, 63.4995224996325)
Mineral deposit model Low-sulfide Au-quartz veins? (Cox and Singer, 1986; model 36a?).
Mineral deposit model number 36a?
Age of mineralization Paleocene or younger.

Production and reserves

Workings or exploration No recent exploration or development work. No record of old mine workings; probably surface work only.
Indication of production Undetermined

Additional comments

The prospect is in Denali National Park Wilderness.

References

MRDS Number 10307505
Reporters N. Van Wyck (Stevens Exploration Management Corporation)
Last report date 4/7/2000