It’s been thousands of years since an eruption occurred at Yellowstone, and new research shows what may be contributing to that.

New research used artificial earthquakes generated by a truck with a vibrating hydraulic plate to better understand the depth ...

Under a swath of Kentucky hills and hollows is a limestone labyrinth that became the heartland of a national park. The surface ... A sandstone and shale cap, as thick as 50 feet in places, acts ...

One of the world’s oldest national parks, Mount Rainier became part of the federal system in 1899, shortly after its last eruption. Park status was the culmination of a long campaign by John ...