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

While the peak is a plug dome volcano, Prospect Peak is an example of a shield volcano. Nearby Cinder Cone takes its name from that type of volcano, and Brokeoff Mountain is a composite volcano.

Explore these unforgettable California travel destinations, from natural wonders to iconic landmarks, in this personal ...

Discover the serene beauty of Crater Lake in south-central Oregon, known for its vibrant deep blue color and remarkable clarity. This natural wonder was formed 7,700 years ago after the volcanic ...

Dreaming of Zion National Park? Uncover a stunning hidden gem in Utah that offers fewer crowds (and just as much beauty).

Magma from the mantle finds its way to the surface, where it erupts as lava or ash and gas—sometimes in spectacular spurts, ...

For centuries, humans have lived underground. Today, that ancient practice is under dire threat—even as cave life makes more ...

High viscosity magma creates steep-sided lava domes wherein low-viscosity magma produces cinder cones. Government Mountain is located in Kaibab National Forest in south-central Coconino County.

Specimens occur in volcanic tuff becoming larger and more plentiful along the 1 mile hike to the amphitheater or exposed interior of the cinder cone, which was caused by a phreatomagmatic eruption ...

A 26-year-old Brazilian woman remains trapped inside an active volcano in Indonesia, after she fell near Mount Rinjani's crater lake over the weekend.