Mountain Rose Mine

Past ProducerFeldspar, Beryllium, MicaUSGS MRDS

Location

StateSouth Dakota
CountyCuster
Coordinates43.62107, -103.60362

Commodities

PrimaryFeldspar, Beryllium, Mica

Mine Details

StatusPast Producer
Last Production1945
Discovery Year1932
Data SourceUSGS MRDS
Source ID10012490

What This Means

This mine is a past producer — it was once operational but is no longer actively mining. Past producer sites may still have environmental impacts including disturbed land, tailings piles, and potential water quality effects. Some past producer sites have been reclaimed, while others remain as-is. Check with your state mining or environmental agency for current site conditions.

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