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 ...

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 ...

Controversial multi-use trail cuts through former nuclear weapons manufacturing facility with history of spills. Boulder ...

McWethy, and Cathy Whitlock for the PNAS research article, 'Dynamic treeline and cryosphere response to pronounced mid-Holocene climatic variability in the US Rocky Mountains.' The study takes a ...