Montana Onyx Mine

OccurrenceStoneUSGS MRDS

Location

StateMontana
CountyMadison
Coordinates45.06660, -112.34447

Commodities

PrimaryStone

Mine Details

StatusOccurrence
Data SourceUSGS MRDS
Source ID10183276

What This Means

This location is classified as a mineral prospect or occurrence — a site where minerals have been identified but no significant mining has taken place. These sites typically have minimal environmental impact but indicate the presence of mineral deposits in the area.

Other Mines in Madison County

View all mines in Madison County →

Other Stone Mines in Montana

All stone mines in Montana →