Smoke billows from the mouth of Mt. Shasta like a thunderous cough. Within moments, clear skies turn gray, and the sun vanishes behind thick, shifting layers of volcanic gas and ash. Visitors snap ...

HONOLULU — The eruption of the Mauna Loa volcano on Hawaii's Big Island continues to ease, scientists said Sunday, reinforcing an earlier pronouncement that the mountain's first flare-up in nearly 40 ...

Note: This is the fourth in a series of six Guest Opinions commemorating the Craters of the Moon National Monument Centennial. While southern Idaho’s vast Snake River Plain is lauded and renowned ...