Keystone Mine

Past ProducerFluorine-FluoriteUndergroundUSGS MRDS

Location

StateIdaho
CountyCuster
Coordinates44.44519, -114.32842

Commodities

PrimaryFluorine-Fluorite
TertiaryLead, Copper, Beryllium, Silver

Mine Details

StatusPast Producer
TypeUnderground
Discovery Year1877
Data SourceUSGS MRDS
Source ID10071078

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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