Portland Mine

Past ProducerIronSurfaceUSGS MRDS

Location

StateMichigan
CountyBaraga
Coordinates46.53472, -88.15226

Commodities

PrimaryIron

Mine Details

StatusPast Producer
TypeSurface
Deposit TypeSecondary Enrichment
First Production1909
Last Production1915
Data SourceUSGS MRDS
Source ID10079316

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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