When hydrologist Bob Beschta arrived in Yellowstone in 1996, he noticed something odd with the Lamar River. The stream was over-widened, the banks were eroding and precious soil was sloughing off ...

On the 150th anniversary of its founding, Kevin Costner explores Yellowstone National Park to find out if it's still as wild and untouched as it was on the day of its birth, and looks back at the ...

Jessie is living a parent's-worst-nightmare: racing to find her daughter, prove her innocence and stay alive in beautiful, isolated Yellowstone National Park. Unfortunately Disappearance in ...

On March 1, 1872, President Ulysses S. Grant signed the bill creating Yellowstone Park, the first national park in the history of the world. Despite the fact that the new national park comprised ...

Update: Our new Yellowstone National Park stories may surprise you with ... agreed-on definition—the term was popularized in a BBC documentary in 2000—but some scientists use it to describe ...