How did hundreds of Montana granite stones end up in farm fields in Oregon’s Willamette Valley? Take a hike along an Ice Age trail to find out.

Forbes contributors publish independent expert analyses and insights. I roam the world for epic nature, urban areas and road trips. Deep in the woods of central Wisconsin, a lanky man with a long ...

On the floor of a 32-foot-deep small lake just northeast of Grand Rapids, Michigan, Calvin students are literally digging up history. “It was a shot in the dark when we decided to core this lake ...

Between 128,000 and 186,000 years ago, when ice covered the Sierra Nevada, a lake 100 miles long and 600 feet deep sat in eastern California in what is now the Mojave Desert. As the climate warmed and ...