The persistent presence of humans and their infrastructure in U.S. national parks has yielded dramatic changes in the behaviors of large animals who live there, a new study has found. Even during the ...

The United States has a proud history of preserving its natural beauty through national parks. Each year, millions of ...

Winter transforms the American wilderness into a landscape of stark beauty and profound silence. Snow blankets the ground, ...

Section 1. Policy. From the awe-inspiring Grand Canyon to the tranquility of the Great Smoky Mountains, America’s national parks have provided generations of American families with unforgettable ...

Visiting one of the U.S.' breathtaking national parks may not sound obvious to do when it's cold outside, but perhaps these ...

In the United States, a national park is an area of isolated land protected by the government in order to foster conservation and outdoor activities as well as emphasize national pride. Sovereign ...

Dozens of rare amphibians boarded a helicopter from the Bay Area last week, unaware of the journey that was ahead: a 250-mile flight to their new home in a national park. Yellow-legged frogs were once ...

ESTES PARK, COLORADO ‒ As her kids danced their stuffed animals around a 3D map of Rocky Mountain National Park's peaks and valleys, Chrissy Whissler began ticking off all the national parks she and ...

Yellowstone, Yosemite and the Grand Canyon will all be affected. Foreign visitors will soon have to pay extra to explore America's most popular national parks. According to the U.S. Department of the ...