Prospect, Inactive

Commodities and mineralogy

Main commodities Au; Co
Ore minerals cobaltite; gold

Geographic location

Quadrangle map, 1:250,000-scale NB
Quadrangle map, 1:63,360-scale A-4
Latitude 62.1375
Longitude -142.9269
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is along the west side of lower Nabesna Glacier. It is at an elevation of about 3,500 feet in the SW1/4 of section 7, T. 4 N., R. 14 E. of the Copper River Meridian. This is National Park Service locality WRST-28 (unpublished data) and the coordinates for this prospect were provided by the National Park Service.

Geologic setting

Geologic description

An unpublished National Park Service map and accompanying database identify this locality as a gold and cobalt prospect. Four mining claims were located here between 1972 and 1974 as the Gay 1-4 claims. These claims may have been on or may have included the calcite vein with gold and cobaltite at locality NB041. That vein is in highly altered and limonite-stained Triassic, Nikolai Greenstone(?) near the contact with a Tertiary porphyry intrusion (Richter, 1973).
Geologic map unit (-142.92902406259, 62.1371042305209)
Mineral deposit model Calcite vein with gold and cobaltite?
Age of mineralization Tertiary? The age of the nearby porphyry is inferred to be Tertiary.

Production and reserves

Workings or exploration Some surface prospecting has occurred here.
Indication of production None

Additional comments

The prospect is in the Wrangell-St. Elias National Preserve.


Reporters Travis L. Hudson (Applied Geology)
Last report date 11/24/2002