Hannum Creek

Mine, Inactive

Commodities and mineralogy

Main commodities Au
Other commodities Pb; Sn
Ore minerals cassiterite; galena; gold
Gangue minerals hematite; pyrite

Geographic location

Quadrangle map, 1:250,000-scale BN
Quadrangle map, 1:63,360-scale D-3
Latitude 65.917
Longitude -163.232
Nearby scientific data Find additional scientific data near this location
Location and accuracy Placer gold mining has occurred for over 4 miles of the channel of Hannum Creek, extending from the mouth of Collins Creek (a south tributary to Hannum Creek) upstream to the confluence with Cunningham Creek. Hannum Creek is a north tributary to Inmachuk River. This is locality 69 of Cobb (1972; MF 417; 1975; OFR 75-429).

Geologic setting

Geologic description

Gold was discovered on Hannum Creek in 1900 (Moffit, 1905) and placer mining has occurred for over 4 miles of the channel, from the mouth of Collins Creek upstream to the confluence with Cunningham Creek. Gold is irregularly distributed on schist bedrock that is locally decomposed to blue clay. Gravels in the creek are 2-6 ft thick and the pay streak was 6 inches to 4 feet thick, with widths up to 100 feet. Galena (with hematite and pyrite) was recognized in early in placer concentrate (Moffit, 1905) and cassiterite was reported in 1947 (Anderson, 1947). Galena- and sphalerite-bearing lode deposits are present in headwaters to Hannum Creek (BN056) and Cunningham Creel (Harrys Creek, BN055). Bedrock of the area is a metasedimentary schist and marble sequence of Lower Paleozoic age (Till and others, 1986). Quaternary/Tertiary basalt flows locally cap ridges along the Hannum Creek valley.
Geologic map unit (-163.23470220887, 65.9163043130998)
Mineral deposit model Placer Au-PGE (Cox and Singer, 1986; model 39a)
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration Over 4 miles of surface, open-cut placer workings are present along the channel of Hannum Creek, extending from the mouth of Collins Creek (a south tributary) upstream to the confluence with Cunningham Creek.
Indication of production Yes; small

References