Keweenaw Peninsula

The Keweenaw Peninsula (/ˈkiːwənɔː/, KEE-wə-naw) is a peninsula of the U.S. state of Michigan. It is part of the greater landmass of the Upper Peninsula. The Keweenaw Peninsula goes about 65 miles (105 km) into Lake Superior, forming Keweenaw Bay. The peninsula is part of Michigan's Copper Country region.

The ancient lava flows of the Keweenaw Peninsula were created during the Mesoproterozoic Era as a part of the Midcontinent Rift between 1.096 and 1.087 billion years ago.[1]

References

  1. ↑ "Geologic Timeline - Keweenaw National Historical Park (U.S. National Park Service)". www.nps.gov. Archived from the original on 2018-06-12. Retrieved 2018-06-08.
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