Dennys Gulch; O'Keefe Mine, Chandalar Mining District, Yukon-Koyukuk Census Area, Alaska, USAi

Regional Level Types
Dennys Gulch; O'Keefe Mine	Mine
Chandalar Mining District	Mining District
Yukon-Koyukuk Census Area	Census Area
Alaska	State
USA	Country

See also: Sawlog Creek (CH020). Alaska Kardex No. KX-031-11 (Kardex is a card file mining claim information system located at the State of Alaska DNR Public Information Center in Fairbanks).
Location: This property is at an elevation of about 3,400 ft on the northeast side of the O'Keefe Hills (SE1/4 sec. 29, T. 30 N., R. 7 W., of the Fairbanks Meridian); it is approximately 18 1/2 miles southwest of Chandalar. The reference point coincides with the mine symbol on Dennys Gulch shown on the topographic map. The location is accurate within a 1/2-mile radius.
Geology: This area was not described by early workers, which suggests that the discovery of placer gold was considerably later than that in many other parts of the district. There are reports of active placer mining on this creek as late as the 1960s but little information after that. Heiner and Wolff (1968) reported that placer gold has been mined from gravels that range in thickness from 6 to 70 ft and that coarse nuggets (valued at as much as $100) have been recovered, although no pay streak was delineated. Bedrock is mapped as quartz-muscovite schist that is highly deformed and cut by many thin quartz veins that contain pyrite (Freeman, 1963). Brosg
Workings: Placer mining reported as late as 1964 (Brosg
Age: Quaternary.

Commodities (Major) - Au
Development Status: Yes
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a)

Other Databases

Link to USGS - Alaska:	CH019

Other Regions, Features and Areas containing this locality

References