Pyroclastic Materials

Cinder Cone

Cinder Cone Volcanoes

Kilauea Volcano Cinder Cone

The cinder cone of Vesuvius

Composite Cone

Composite Volcanoes

Mount Hood

Mount Rainier

Shield volcanoes

Shield Volcanoes

These broad, slightly domed structures, exemplified by the Hawaiian Islands, are the largest volcanoes on Earth

SP Crater, a cinder cone north of Flagstaff, Arizona

Mount Shasta, California, one of the largest composite cones in the Cascade Range

Nuée ardente on Mount St. Helens

Plaster casts of several victims of the a.d. 79 eruption of Mount Vesuvius that destroyed the Italian city of Pompeii.

St. Pierre as it appeared shortly after the eruption of Mount Pelée, 1902

Volcanic areas in the northwestern United States