Henwood Mine (douglass Houghton)

Past ProducerCopperUSGS MRDS

Location

StateMichigan
CountyOntonagon
Coordinates46.82028, -88.99368

Commodities

PrimaryCopper

Mine Details

StatusPast Producer
Deposit TypeConglomerate With Copper Inclusions
First Production1850
Last Production1856
Data SourceUSGS MRDS
Source ID10310134

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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