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

Investigating the causes and consequences of volcanoes and featuring case studies from the Canary Islands, The Democratic Republic of the Congo and Iceland. Below earth’s surface, in the upper ...

While mud volcanoes have been identified in Lake Baikal before, this new activity is striking because of its proximity to an active fault. Cracks and cones are aligned parallel to the Severobaikalsk ...