November 11, 2008 • 1h
The Pacific Crest Trail zigzags some 2,650 miles from Mexico to Canada . It cuts through seven national Parks and 24 national fore...Read more
January 1, 1970 • 1h
For more than half of the U.S. population, the Appalachian Trail is less than a day's drive away. Yet despite its proximity to man...Read more
January 1, 1970 • 1h
It is the driest place in the U.S, with some of the hottest temperatures ever recorded. To forecast how global warming could impac...Read more
January 1, 1970 • 1h
It is one of Earths few landforms visible from space, a World Heritage site, and one of Americas most popular National Park with o...Read more
July 20, 2009 • 1h
Far in the Pacific, 250 miles from Honolulu, a hidden wilderness teems with life ... the Northwestern Hawaiian Islands. In 2006, t...Read more
January 1, 1970 • 1h
Life-changing encounters with the natural world await you off-road and beyond the tourist spots in a Yellowstone you've never seen...Read more
January 1, 1970 • 1h
Scale the largest granite monolith on Earth, see the tallest waterfall in North America, and touch a giant sequoia, the largest li...Read more
January 1, 1970 • 1h
Discover this unique and threatened ecosystem, including carnivorous plants, amphibious birds, fish that breathe air and cacti that grow in water.
October 26, 2009 • 1h
The stark appearance of Canyonlands conceals life in unexpected places.
August 30, 2010 • 1h
A new wilderness emerges in Glacier National Park as the ice melts.
September 6, 2010 • 1h
Join National Geographic as we trek between low and high country to experience big game deep in the taiga forest, beautiful subarc...Read more