This story appears in the February 2019 issue of National Geographic magazine. In Rocky Mountain National Park, 415 square miles of mountain terrain are protected—but not from effects of climate ...

Rocky Mountain National Park is home to herds of elk and bighorn sheep, but it also has a population of mountain lions and black bears. Although attacks are very rare, the National Park Service ...

All these years later, the Rocky Mountains continue to be a hub for ... such as volcanic activity. The paper revealed, "Mid-Holocene treeline expanded ~180 m above its modern elevation when ...