Cinder cones are the smallest and simplest type of volcano. But that doesn't mean they can't pack a punch. Best described as steep, conical hills, cinder cones are formed by pyroclastic rock ...

If you can stay longer, climb Cinder Cone, an outstanding example of the results of volcanism, and, if you have the stamina for a more demanding trek, try Lassen Peak. Four types of volcanoes ...

To climb Wizard Island is to climb a volcano within a volcano. Wizard Island is a cinder cone that was created from several minor eruptions at least 900 years ago, while the lake level was rising ...

When a cinder cone erupts, the ground shakes ... of lava that accumulate around and over the volcano’s vent. Lava domes commonly are found inside the craters or on the flanks of large composite ...