How to Ship 800 Billion Pounds of Rock (The Marquette Ore Docks)
Key Topics:
Marquette, Michigan
Brief history of iron shipping in Marquette
Why ore docks were constructed
What the first ore docks were like
History of the Lower and Upper Harbor Ore Docks
How the Upper Harbor Ore Dock works today
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Modern Life Depends on This Extinct Rock | Banded Iron Formations
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