Add Yahoo as a preferred source to see more of our stories on Google. Note: This is the fourth in a series of six Guest Opinions commemorating the Craters of the Moon National Monument Centennial.

Hawaii has a relatively limitless and growing supply of volcanic rock, yet the availability of one particular kind has triggered an emergency search by state officials. What’s in short accessible ...

Volcanoes are grouped into four types: cinder cones, composite volcanoes, shield volcanoes and lava volcanoes. Cinder cones are circular or oval cones made up of small fragments of lava from a single ...

Climbing Cinder Cone is a steep, slow slog but worth every step. Waiting at the top of the 6,907-foot volcano are a sense of accomplishment and amazing views. A trail circles the rim, providing ...

Add Yahoo as a preferred source to see more of our stories on Google. Smoke billows from the mouth of Mt. Shasta like a thunderous cough. Within moments, clear skies turn gray, and the sun vanishes ...

Volcanoes are Earth’s geologic architects. They’ve created more than 80 percent of our planet’s surface, laying the foundation that has allowed life to thrive. Their explosive force crafts mountains ...

As the oldest and largest island, the Island of Hawaii is dominated by the pair of volcanoes that created the island. At the ...