Beneath dormant volcanoes in the Cascades region of the Pacific Northwest, scientists found large reservoirs of magma. The discovery challenges […] ...

The Umatilla River once served as an important meeting ground for the Cayuse and their Nez Perce allies to the east. A large ...

One of the world’s most iconic long-distance hiking trails for hiking enthusiasts is the Pacific Crest Trail (PCT). It ...

At least twice in the last few thousand years, Mount Churchill's ice-covered caldera has spewed ash that reached as far as ...