Yellowstone volcanism has produced some of the youngest rocks in North America. This same region also features some of the ...

The Yellowstone region's Beartooth Mountains feature some of the most ancient rocks in North America — as old as 3.96 billion ...

Hand-carved arrowheads and jagged spears made of obsidian, a sharp rock formed by volcanic magma, are remnants of vast ...

When people think about volcanoes, they often picture places like Hawaii or Yellowstone—not Colorado. But did you know that ...

These are the 25 countries which are home to the most significant cultural, historical and natural sites, according to UNESCO.

If you're seeking challenging hiking opportunities in national parks, we've handpicked strenuous trails on varying landscapes ...

Discover the 20 Most Dangerous National Parks in The US in this in-depth look at extreme terrains, unpredictable wildlife, ...