Ash released from shield volcanoes often builds up around the vent forming a steep, round hill known as a cinder cone. A lava tube may also form, beneath the surface of the ground, when low ...

Four types of volcanoes—shield, composite, cinder cone, and plug dome—can be found in Lassen Volcanic National Park, where they literally bubble and steam.

It discusses various types of volcanoes, including stratovolcanoes, shield volcanoes, and cinder cones, explaining their formation and characteristics. The film highlights significant volcanic ...