A tree-ringed African lake has yielded a record of Earth's magnetic field spanning the past 150,000 years.

Parks staff say new exhibits will center the eruption in the ongoing story of the mountain rather than treating it as a ...

Mount St. Helens erupted, causing immense devastation and loss of life. The eruption, triggered by an earthquake, destroyed ...

Bask in the sun during the day and relax under the glow of stars at these campsites. You will find many options that will ...

Serious flooding events in the Guadalupe River Basin ultimately led Congress to authorize building the Canyon Lake Dam.