Mine detail: Northern Chief

Previously called 'Butterfield Group'

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Location

Lat / long:

40.50244, -112.14997

Resource(M)

Primary:	Copper
Secondary:	Lead, Silver, Gold
Tertiary:	Zinc
Ore:	Covellite
Orebody form:	POCKETS

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer

Geology

Host type:	Monzonite
Associated type:	Monzonite
Alteration processes:	Brecciated Porphyry

References

MRDS	DC14265
DEP	10020915
Reference	{Deposit:: USGS PROF. PAPER 38. P. 325}{Deposit:: CONSV. DIV. COMP. DATE, 03-25-1958}
Reporter	Mc Coy, Gail, Wong, George (Tooker, Ed)