2 Billion Years Ago
Iron Range Beginnings

Illustrated map of Minnesota 2 billion years ago with Gunflint, Vermilion, Mesabi, and Cuyuna iron ranges highlighted


The Mesabi, Cuyuna, Vermilion, and Gunflint iron ranges begin to form as iron-bearing minerals sink and collect at the bottom of an inland sea.  More...


Related Events

1903

Cuyuna Iron Range

1884

Merritts Discover Mesabi

1884

Iron Industry Launch

2 Billion Years Ago

Signs of Life