Scientist finds Jeffrey pine trees at record mountain heights, suggesting climate-driven shifts in Sierra Nevada.

Are you looking for the top U.S. national parks, ranked from stunning to must-visit? Read on for a list of the best U.S. national parks you can visit this season.

This dazzling California state park has all the charm of Yosemite, from hikes past ancient redwoods to hidden swimming spots, ...

Want to escape the crowds of Yosemite this summer? One campground just outside the park offers uncrowded serenity on the ...

One of the most famous scenic drives in the United States, Going-to-the-Sun Road in Glacier National Park goes to the nines: ...