Open since 1909, this Portland gem is also known as America's First Urban Quiet Park. Explore its many trails, reservoirs, ...

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 ...

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!

These high lava fountains built the prominent Pu‘u‘o‘o cinder cone, which you can view on the Devastation Trail in Hawaii Volcanoes National Park. Hazards associated with lava fountaining ...

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 ...