Like some of the more famous parks ... Lassen Peak is one of the largest plug dome volcanoes in the world, and its most recent violent eruptions from 1914 to 1917, photographed by B.F. Loomis, ...

try Lassen Peak. 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.

Its namesake feature, the 10,457-foot Lassen Peak, is one of the world's largest lava dome-type volcanoes and the southernmost active volcano in the Cascade Range.