A powerful eruption of Mount Semeru in Indonesia has forced evacuations and sent a 54,000-foot ash cloud into the sky. The ...

Through all of those changes, Amboy Crater - the large black cinder cone volcano that looms over Amboy and Route 66 - has stayed the same. Of course, in terms of geologic time, the volcanic stalwart ...

There’s something magnetic about volcanoes. While some are far too dangerous to approach, others invite you right up to the rim, offering front-row seats to nature’s raw energy. From Hawaii’s fiery ...

Lassen Volcanic National Park is full of stunning landscapes and unique volcanic features that make it a great spot for ...

While Southern Arizona is known for its porphyry copper deposits, Northern Arizona is better known for its nonmetallic commodities, including basalt, helium, potash and carbon dioxide (CO2). More than ...

Southern Arizona has numerous sites known for their pyroxene minerals, from Twin Buttes south of Tucson, to Ajo, to the Chiricahua, Santa Rita and Patagonia mountain ranges. Pyroxenes are classified ...

Several breathtaking U.S. monuments and wilderness areas may soon earn the coveted title of national park, joining America's ...

This small city in Oregon is a retiree's dream, where there is stunning scenery in every direction and Social Security income ...

Lanakila Mangauil finishes a pule after the first leg of the ‘Aha Pule ‘Āina Holo to welcome the season of Makahiki in Hilo ...

The physics of mixing water layers — an interplay of wind, climate and more — makes lakes work. When it stops, impacts can ...

In the video clip, the scary figure inside the hidden cave seemed to have dark eyes and a creepy smile.

Satellites have recorded an unusual formation in the crater of the ancient volcano Trou-o-Natron, known to locals as Dun Orei ("big hole"), in Chad in the central part of the Sahara Desert. From a ...