Average annual temperature increase over the last century in the high-elevation park from climate change Rocky Mountain National Park covers 415 square miles atop the Continental Divide in the Front ...

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 encompasses more than 250,000 acres and boasts 124 named mountain peaks. Subsequently, the massive park draws visitors interested in camping, biking, fishing and ...

Back before the internet, hikers only had one tool to explore Rocky Mountain National Park. They simply called it the Dannen book. Kent Dannen, seen in this undated photo, wrote the guidebook ...