Last Chance Creek; Crab Creek Occurrence, Koyukuk Mining District, Yukon-Koyukuk Census Area, Alaska, USAi

Regional Level Types
Last Chance Creek; Crab Creek Occurrence	Occurrence
Koyukuk Mining District	Mining District
Yukon-Koyukuk Census Area	Census Area
Alaska	State
USA	Country

Prospect was called Crab Creek by Reed (1938), but it is called Last Chance Creek on the modern topographic map.
Location: The reference point for this occurrence is on Last Chance Creek (NE1/4 sec. 14, T. 31 N., R. 9 W., of the Fairbanks Meridian) approximately 1 mile north of Big Lake(site) on Bob Johnson Lake. The location is accurate within a 1-mile radius. Also see Additional comments.
Geology: Prospecting in 1922 yielded two grains of coarse gold at the bottom of a 30-foot-deep prospect shaft (Reed, 1938). Additional prospecting in 1932 yielded one grain of gold (said to be worth $0.05) from a 4-foot open cut near where the stream valley opens into the valley of Lake Creek. No other data are available for this occurrence.
Workings: Last Chance Creek was prospected by at least three shafts to bedrock and an open cut. A 30-foot shaft was sunk in 1922 and 15-foot and 35-foot shafts were sunk in 1932. The 15-foot shaft reportedly was near the mouth of the creek and the 35-foot shaft was farther upstream 'at the forks'. Claims have been staked on Last Chance Creek since 1969, but there are no reports of any work.
Age: Quaternary.

Commodities (Major) - Au
Development Status: None
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a)

Other Databases

Link to USGS - Alaska:	CH073

Other Regions, Features and Areas containing this locality

References