Deep in Central Oregon lies a short yet unnervingly narrow lava‑tube hike full of basalt corridors and tight passages where ...

You might not know it, but Ireland is dotted with extinct volcanoes that have shaped the island we know and love today ...

High-lithium clays discovered in Nevada's McDermitt Caldera - a surface find that could transform the US clean energy chain.

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

During a spontaneous stop to celebrate a birthday in southwest Arkansas, an Oklahoma family uncovered something far beyond ...

Discover the beauty of Wyoming's national parks, monuments, and recreation areas. Plan your outdoor adventure now!

Indonesian authorities say they are helping more than 170 climbers caught by Mount Semeru’s sudden eruption to return to ...

Indonesian authorities raised the alert for Mount Semeru volcano to the highest level after a series of eruptions, prompting ...

Indonesian authorities say they are helping more than 170 climbers caught by Mount Semeru’s sudden eruption to return to ...

Frightening video captured the moment a volcano in the Philippines erupted over the weekend — spewing plumes of black smoke 7,000 feet into the sky. The Taal Volcano, located south of Manila, ...

Indonesia's Mount Semeru volcano erupted Wednesday afternoon around 4:00 p.m. local time, sending ash more than 6,500 feet ...

Sicily on alert: a new study reveals that a simple seismic earthquake index can predict the rise of magma beneath Mount Etna.