Established in 1872, Yellowstone National ... books. Yes, Yellowstone isn't all for hiking or horseback riding! Its ...

Under a swath of Kentucky hills and hollows is a limestone labyrinth that became the heartland of a national park. The surface ... tiny dot of light magically spreads, illuminating a circle ...

including Rocky Mountain National Park. Climate change is facilitating the spread of invasive grasses in the park as well as pine bark beetles, which are killing millions of trees. These changes, ...