T he McDermitt Caldera, an ancient supervolcano straddling the Nevada-Oregon border, may hold the world’s largest lithium deposit ever discovered. With estimates ranging between 20 and 40 ...

This caldera is 15 miles in diameter and is North America's second largest. 1. The Long Valley Caldera in which the city of Mammoth Lakes sits was thought until recently to be the largest Caldera ...

From the air, the caldera at Okmok looks a lot like Oregon's Crater Lake (the home of the largest eruption in what is now the US over the past 10,000 years) if it was drained. There may have been a ...

Lithium resources are abundant globally in rock and brine but researchers have discovered a new source in volcanic sediments.

Travel through one of the largest calderas in the world at Mt. Aso in Kumamoto Pref. The caldera has fertile ground to sustain crops and livestock.