Supai started life in a pack of wild dogs on the Havasupai Indian Reservation. Here's how she was named the "happiest pet on ...

"The Grand Canyon is an epic Rosetta Stone for geology," Denver Museum of Nature and Science geologist James Hagadorn said.

Cameron Duke of MinuteEarth explained how certain rivers allow for canyon formation due to specific geological conditions.

Grand Canyon National Park may soon be raising the cost for staying overnight at its Mather, Desert View and North Rim ...

Edwin McKee’s groundbreaking work on the Grand Canyon’s geology has been revisited by a modern team, revealing new insights ...