Pennsylvania Mine

Broadwater County, Montana, United States

Copper Silver Gold

Land & claims · BLM · live

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BLM MLRS ↗Claims at this point ↗Surface mgmt ↗

Surface manager + active mining claims at this point, live from BLM. The "open to location" notes are a general 1872-Mining-Law guide, not BLM output — decision-support only; verify with BLM MLRS and on the ground before staking or entry.

Commodities

PrimaryCopper, Silver

SecondaryGold

Commodity typeMetallic

Deposit

Deposit sizeN

WorkingsSurface/Underground

Ore controlComplex Fracture System

Materials

GangueBornite

Geology

Host rockLimestone · Madison Limestone

Associated rockDiorite

StructureShort Distance From Lombard Over Thrust

AlterationMarmarized Limestone Locally Garnstized And Altered In Tactites

Economic & production

Development statusProspect

Discovery year1885

Community notes

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References

REED, GC., 1951, MINES AND MINERAL DEPOSITS, BROADWATER CO, MONT, USBM, INF. CIRC. 7592, P. 53CONSV. DIV. COMP. DATE, 06-05-19631951 COMPILE USBM INF. CIRC. 759

Identification

Deposit ID10096900

MRDS IDDC09243

RegionNA

Data scoreB

Coordinates45.98184, -111.54279