Perhaps the most quintessential of all national parks in the United States lies a couple of hours north of Denver, Colorado.

Each season in Rocky Mountain National Park brings its own unique charm. In the spring and summer, wildflowers bloom in abundance, and the trails are ideal for hiking and horseback riding.

The best time to visit Rocky Mountain National Park is from June to September when the snow is (mostly) melted and the hiking trails and attractions are accessible. Still, these four months are ...

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 ... via Glacier Gorge Trail, which runs about 10 miles and becomes more rewarding as you climb upward. For a more manageable hike, visitors suggest the ...