Mine detail: Treadwell Mine

Previously called 'Alaska Treadwell Gold Mining Co.'

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Location

Lat / long:

58.26642, -134.38007

Resource(M)

Primary:	Gold
Secondary:	Silver, Lead
Tertiary:	Copper, Zinc, Arsenic, Tungsten, Molybdenum
Ore:	Chalcopyrite, Molybdenite, Orpiment, Realgar, Scheelite, Sphalerite
Gangue:	Albite, Biotite, Calcite, Quartz
Orebody form:	PINCH AND SWELL
Discovery year:	1881

Production

Operation type:	Unknown
Production size:	Medium
Development status:	Producer
First production started:	1882
Last production ended:	1922

Geology

Host type:	Slate
Associated type:	Greenstone
Tectonic:	Gravina Belt, Berg And Others, 1978; Usgs Ofr 78-1085
Alteration processes:	Albitization

References

MRDS	A012061
DEP	10001321
Reference	{Deposit:: USGS 18TH ANNUAL REPORT, PART 3, P. 10, 12, 62-70}{Deposit:: USGS BULL 287, P. 90-116}{Deposit:: USGS BULL 662, P. 77-79}{Deposit:: USGS OFR 60, P. 4, 21-22, 45, 93}{Deposit:: ADGGS REPORT FOR THE YEAR 1966, P. 54, 60}{Deposit:: USGS BULL 1246, P. 154-155}{Deposit:: USBM IC 8331, P. 6-7}{Deposit:: USBM OFR 22-69, P. 33}{Deposit:: USGS OFR 85-717, P. 210-211}{Deposit:: STONE, DAVID AND STONE, BRENDA, 1983, HARD ROCK GOLD, THE STORY OF THE GREAT MINES THAT WERE THE HEARTBEAT OF JUNEAU: SEATTLE, WASHINGTON, VANGUARD PRESS INC., P. 10-36}{Other Database:: BAG-OFR-85-717-1979}{Production:: STONE AND STONE, 1983, P. 34; USGS OFR 85-717, P. 210-211}
Reporter	Leonard, Kenneth R. (Elliott, R. L.), Mosier, Dan