Surprise Creek; Laddie; Sheehan; Hubbard Prospect, Chistochina Mining District, Valdez-Cordova Census Area, Alaska, USAi

Regional Level Types
Surprise Creek; Laddie; Sheehan; Hubbard Prospect	Prospect
Chistochina Mining District	Mining District
Valdez-Cordova Census Area	Census Area
Alaska	State
USA	Country

The locality is in the Wrangell-Saint Elias National Park and Preserve.
Location: This prospect is on the small ridge between Surprise and Sunshine creeks. It is at an elevation of about 3,700 feet, 1,000 feet northeast of the center of section 32, T. 1 S., R. 9 E. of the Copper River Meridian. This is locality 173 of MacKevett (1976) and locality 4 of MacKevett and others (1978). The location is accurate to within about 100 feet. Cobb and MacKevett (1980) included this prospect under the name 'Surprise Cr.'.
Geology: The deposit at this prospect consists of discontinuous quartz-calcite veins up to 8 feet thick, but commonly much thinner, that are localized along a shear zone (Moffit and Maddren, 1909; Moffit and Mertie, 1923; MacKevett, 1976). The veins contain chalcocite, bornite, chalcopyrite, and pyrite. The veins mostly cut Triassic Nikolai Greenstone although most of the country rock in the area is Jurassic granitic rock (MacKevett and others, 1978). A few short adits and numerous open cuts explore this deposit. A total of six claims were once staked end-to-end along the mineralized shear zone.
Workings: A few short adits and numerous open cuts explore this deposit. A total of six claims were once staked end-to-end along the mineralized shear zone.

Commodities (Major) - Cu
Development Status: None
Deposit Model: Vein

Other Databases

Link to USGS - Alaska:	MC019

Other Regions, Features and Areas containing this locality

References