Castle Island Mine

Past ProducerBarium-BariteUSGS MRDS

Location

StateAlaska
Coordinates56.65252, -133.16299

Commodities

PrimaryBarium-Barite
TertiaryGold, Silver, Lead, Zinc, Copper

Mine Details

StatusPast Producer
Deposit TypeStratiform
First Production1963
Last Production1980
Discovery Year1925
Data SourceUSGS MRDS
Source ID10100940

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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