When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Sunset Crater, located in north-central Arizona, is the youngest volcano found on the ...

Klyuchevskaya Volcano on Russia's Kamchatka Peninsula is the largest active volcano in the Northern Hemisphere. A caldera is the circular depression in the center of a volcano's summit that forms ...

Lava is molten rock from a volcano that reaches the Earth’s surface. Liquid rock below the Earth’s surface is referred to as magma. More than 50% of the world’s active volcanoes above sea level ...

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 ...

Here’s a look at volcanoes, mountains that open downward to a reservoir of molten rock. More than 80% of the Earth’s surface, both above and below sea level, is of volcanic origin. Lava is molten rock ...