At Mount St. Helens, volcano monitoring and trail maintenance efforts are set to degrade without help from federal agencies.

Mount Spurr near Anchorage has been showing signs of unrest for a year. Now scientists think it's creeping closer to an ...

From Vesuvius to Laki, we've seen some monstrous eruptions of volcanoes throughout history. Most of these volcanoes are stratovolcanoes, meaning cone-shaped elevations that were built over time from ...