A new study from Colorado State University, Western Colorado University and the U.S. Forest Service found evidence that ...

And not long thereafter, a handful of these toadflax plants were collected from English gardens and toted across the Atlantic ...

Wildfires can burn and spread differently depending on what vegetation they burn. The two fires in northern Arizona have ...

A park official said the visitor center, the gas station, a waste water treatment plant, an administrative building and some ...