Mine: Duff Mine, Iron River, MI
Began → Duff Mine → Became
From:
Owned by:
Produced: Iron Ore
Method:
Railroad connection:
Stamp Mill/Pellet Plant:
Until:
Lifetime Production:
Riverton Mine Group.
Began → Duff Mine → Became
From:
Owned by:
Produced: Iron Ore
Method:
Railroad connection:
Stamp Mill/Pellet Plant:
Until:
Lifetime Production:
Riverton Mine Group.