Mount Rainier National Park in Washington state recorded hundreds of light earthquakes early Tuesday morning, though the ...

I guess this is the photo they took for the Guardian,” says an excited trio of young tourists, pausing on a wooden walkway to ...

A wildfire shut down the Staircase Area and campground as well as several other spots in Olympic National Park.

Road maintenance this month could cause traffic delays up to 30 minutes in parts of Black Canyon of the Gunnison National ...

In geology, even small layers can tell big stories. But figuring out the origins of such small layers can be a challenge, ...

Crater Lake National Park in southern Oregon is the latest spot to announce fire restrictions as hot, dry, breezy summer conditions kick into high gear.