1. Pyroclastic Materials

2. Cinder Cone

3. Cinder Cone Volcanoes Kilauea Volcano Cinder Cone The cinder cone of Vesuvius

4. Composite Cone

5. Composite Volcanoes Mount Hood Mount Rainier

6. Shield volcanoes

7. Shield Volcanoes

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

11. SP Crater, a cinder cone north of Flagstaff, Arizona

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

15. Nuée ardente on Mount St. Helens

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

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

18. Volcanic areas in the northwestern United States