Stillwater Anorthosite

ProspectAluminumSurfaceUSGS MRDS

Location

StateMontana
CountySweet Grass
Coordinates45.46162, -110.07270

Commodities

PrimaryAluminum
TertiarySilica, Magnesite, Iron, Calcium, Sodium

Mine Details

StatusProspect
TypeSurface
Discovery Year1916
Data SourceUSGS MRDS
Source ID10221786

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.

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