Mine detail: Helena Placers

Previously called 'Last Chance GulchTenmile Creek'

<< Back to the map

Location

Lat / long:

46.59129, -111.98005

Resource(M)

Primary:	Gold
Ore:	Gold
Orebody form:	IRREGULAR
Discovery year:	1864

Production

Operation type:	Unknown
Deposit type:	Placer Au-PGE
Production size:	Medium
Development status:	Past Producer
First production started:	1864

Geology

Host rock:	Gravels, Alluvium
Host type:	Gravel
Associated rock:	Boulder Batholith
Associated type:	Granite
Structure:	Boulder Batholith
Tectonic:	Southwest From Montana Disturbed Belt

References

MRDS	W015560
DEP	10071873
Reference	{Deposit:: LYDEN, C. J., 1948, THE GOLD PLACERS OF MONTANA, MONT. BUREAU OF MINES AND GEOL. MEMOIR NO. 26 P. 56-57}{Deposit:: KOSCHMANN AND BERGENDAHL, PRINCIPAL GOLD-PRODUCING DISTRICTS OF THE UNITED STATES, U. S. GEOLOGICAL SURVEY PROF. PAPER 610, P. 105}
Reporter	Mckenzie, Craig L.; R. B. Berg