Unnamed Prospect (ARDF - ID033; head of Yankee Creek), Innoko Mining District, Yukon-Koyukuk Census Area, Alaska, USAi

Regional Level Types
Unnamed Prospect (ARDF - ID033; head of Yankee Creek)	- not defined -
Innoko Mining District	Mining District
Yukon-Koyukuk Census Area	Census Area
Alaska	State
USA	Country

Location: This prospect is at an elevation of about 2,000 feet on the south flank of feature locally called Telephone Hill. It is about 2.3 miles east-southeast of the mouth of Six Gulch and about 0.6 mile southeast of the center of section 11, T. 33 N., R. 38 W., of the Seward Meridian. The location is accurate.
Geology: This prospect consists of: 1) quartz breccia and vuggy veins on the hanging wall of an altered, N30E-trending, granite-porphyry dike, and 2) sheeted quartz-sulfide veins in sandstone of the Upper Cretaceous, Kuskokwim Group. The deposit is exposed in several pits, and locally is oxidized to iron-oxide-rich gossan (Miller and Bundtzen, 1994; Bundtzen and Miller, 1997; Miller, Bundtzen, and Gray, 2005). Arsenopyrite, jamesonite, and visible free gold are reported from quartz-sulfide veins in the old prospect pits. Bundtzen and Laird (1983) collected samples that contained 730 parts per billion gold and 5.0 parts per million. The geology and mineralization at this prospect is similar to that at the Independence Mine (ID031) about 2 miles to the southwest.
Workings: Prospect pits were dug prior to World War II. The Telephone Hill area was prospected by Westgold Inc., in 1989 and by Placer Dome Exploration in 1997. From 1997 to 2002, the prospect was included in the area of a an option agreement between Doyon Limited (the land owner) and North Star Exploration, Inc., a Colorado-based exploration firm.
Age: Probably Late Cretaceous, based on the age of nearby, dated intrusives at the Telephone Hill prospect (ID035).
Alteration: The dike rocks is carbonatized, silicified, and argillized.

Commodities (Major) - Ag, Au; (Minor) - As, Pb, Sb
Development Status: No
Deposit Model: Polymetallic vein or Porphyry Au-Cu (Cox and Singer, 1986; models 22c, 20c).

Other Databases

Link to USGS - Alaska:	ID033

Other Regions, Features and Areas containing this locality

References