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 ...

A snowy cinder cone on Mount Lassen in Northern California ... They determined that the water cycle plays a key role in explosive volcanoes in the Cascade Range. Disclaimer: AAAS and EurekAlert!

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 ...

Nyamuragira is a dome-shaped shield volcano that stands up to 10,033 feet (3,058 meters ... The most recent was "Murara," a cinder cone that emerged between 1976 and 1977. The mountain is also ...

Nyamuragira is a dome-shaped shield volcano that stands up to 10,033 feet ... The most recent was "Murara," a cinder cone that emerged between 1976 and 1977. The mountain is also surrounded ...