Tag Archives: Keweenaw National Historic Park

Appreciating Upper Peninsula copper mining legacy

We live in an area of Michigan’s western Upper Peninsula rich in geological history. Beneath the forests and rocky outcroppings lie ancient basalt lava flows. Lining the shores of Lake Superior are rocks dating back 2.7 billion years. Our rock-and-lake … Continue reading

Posted in October, 2021 | Tagged , , , , , , , , , , | 29 Comments