Montana · Broadwater County
Past Producer

Copper City Mine

Broadwater County, Montana, United States
CopperGoldSilver
⌖ Show on mapUSGS source ↗
Commodities
PrimaryCopper
TertiaryGold, Silver
Commodity typeM
Deposit
Deposit sizeY
Ore controlShear Zone
Materials
GangueChalcocite, Chrysocolla, Malachite
Geology
Host rockLimestone · Madison Group Limestone (Lodge Pole)
Associated rockDiorite
AlterationLocally, The Limestone Is Altered To Calc-Silicate.
Economic & production
Development statusPast Producer
Identification
Deposit ID10019255
MRDS IDDC09235
RegionNA
Data scoreC
Coordinates45.98184, -111.54252
References
STOUT, KS, AND ACKERMAN, WC, 1959, MONT. B.M. AND GEOL. BULL. 10, P. 7.ROBINSON, G, 1963, GEOL. OF THE THREE FORKS QUAD, MONT., USGS PROF. PAP. 370 P. 122REED, GC, 1951, MINES AND MINERALS, BROADWATER CO., MONT, USBM INF. CIRC. 7592, P. 53.CONSV. DIV. COMP. DATE, 03-08-19611963 GEOLMAP ROBINSON, PROF. PAP. 37