Paleontologists have discovered remarkable fossils in the Grand Canyon that reveal fresh details about the emergence of ...

In a surprising twist, two of Arizona’s most iconic landmarks—Meteor Crater and the Grand Canyon—may be linked by a cosmic event that occurred around 56,000 years ago. According to a new study, the ...

From coral reefs to thundering waterfalls, these UNESCO-listed natural wonders are Earth’s most awe-inspiring treasures, each ...

Recently unearthed fossils from the Cambrian period shed light on a key stage of evolution, when life became much more ...

Fire burned the Grand Canyon's North Rim Lodge, not for the first time, but the building left a legacy for all who visited it.

Rocks gathered along the Colorado River contained evidence of a bustling community of animals in an ancient sea.

Less famous but just as unforgettable, these state parks showcase iconic landscapes without the long lines at America’s national parks.

What could possibly link a collision in space on the Arizona desert to a landslide that irreversibly altered the face of the Grand Canyon? Stanton’s Cave, 150 feet above the Colorado River and high ...

Learn more about the Meteor Crater near the Grand Canyon and how it may have created a paleolake thousands of years ago.