The Old Caves Crater Trail is one of the best hikes in Arizona for exploring caves built by the region's earliest inhabitants ...

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Extinct volcanoes could contain high concentrations of rare earth elements, essential components for the green transition. Ulanqab Ulanhada Volcano No. 5 in Inner Mongolia, China.

A volcano in Eastern Russia, previously classified as extinct, could be waking up, leading scientists to suggest a deadly eruption could occur at any time. Scientists say the Bolshaya Udina ...

A volcano in Russia’s Far East that was previously considered extinct may be waking up, scientists say – and an eruption could be catastrophic.

A mysterious type of magma found within extinct volcanoes scattered around the world could contain an abundant supply of rare earth elements, crucial ingredients for electric vehicles, wind ...

While the age of dinosaurs is long past us, Pilot Knob remains as an extinct volcano in southeast Austin, described by local geologists as a window into history. Pilot Knob.

Extinct Russian Volcano Has Woken up and Could Unleash 'Pompeii-size' Eruption, Scientists Warn. Published Jun 06, 2019 at 4:30 AM EDT Updated Jun 06, 2019 at 12:01 PM EDT. By .

A new study concludes that an extinct volcano off the shore of Portugal could store as much as 1.2-8.6 gigatons of carbon dioxide, the equivalent of ~24-125 years of the country's industrial ...