The lava flow caused by the Midcontinent Rift System is known as the Greenstone Flow. The lava eventually cooled into a giant swath of basalt that lines most of the floor of Lake Superior and serves ...

Deep within Africa’s Great Rift Valley, Virunga National Park is home to some of the continent’s most active volcanoes, ...

The Oregon Badlands is the strangest wilderness in Oregon, with no mountains, lakes or streams. This desert landscape east of ...

GRAND 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 ...