Giant lava flow hiding in plain sight in Michigan. Story by Matt Jaworowski • 1w. G RAND RAPIDS, Mich. (WOOD) — When people think of volcanoes, they don’t typically think of Michigan.

But volcanic activity was the driving force behind some of Michigan’s key resources and landmarks. (Feb. 23, 2025) Giant lava flow hiding in plain sight in Michigan ...

Scenic boat tour offers new U.P. adventure with lighthouse, ancient lava flows. Updated: Jun. 12, 2023, ... They wanted more of the remote views Michigan’s northernmost peninsula is known for.

Today, volcano-chasers in Michigan can head from the rhyolite-rich Porcupine Mountains up to the tip of the Keweenaw Peninsula, via M-41 to Copper Harbor, to see lava flows visible in the roadcuts.

The flow traveled roughly 5 km (3 mi) underground in these cracks to within about 1.2 km (0.7 mi) of Ka‘ohe Homesteads subdivision where the lava exited the final crack in early September.

What we see as Isle Royale and the Keweenaw Peninsula is actually part of the one of the largest known lava flows on Earth. When people think of volcanoes, they don’t typically think of Michigan.

When people think of volcanoes, they don’t typically think of Michigan. But volcanic activity was the driving force behind some of Michigan’s key resources and landmarks. (Feb. 23, 2025) ...

When people think of volcanoes, they don’t typically think of Michigan. ... Giant lava flow hiding in plain sight in Michigan. WOOD Grand Rapids. Mon, February 24, 2025 at 4:23 AM UTC.