The US Geological Survey (USGS) explains that Earth cradles nearly 1,386,000,000 cubic kilometers (332,519,000 cubic miles) ...

As one of the top attractions in the U.S., Grand Canyon National Park welcomes more than 4 million visitors a year. Even the ...

Did the Grand Canyon once harbor ancient Egyptian artifacts and evidence of giants? This video explores the alleged discoveries by explorer G.E. Kincaid and the rumored Smithsonian cover-up of ...

The Grand Canyon often is referred to as about 6 million years old -- but its western half actually began to open at least 17 million years ago, a University of New Mexico team reports Friday in ...

A miscalculation allowed a small blaze to roar out of control last month, destroying a historic lodge and other buildings on ...

CU geologists explore Grand Canyon mystery by: Keely Sugden Posted: Aug 24, 2021 / 11:00 AM MDT Updated: Aug 24, 2021 / 11:00 AM MDT ...

I’ve had a taste and I want more. The Grand Canyon is an unfolding mystery. Since the park opened 100 years ago, more than 200 million visitors have made the pilgrimage to this chasm.

The Park Service’s fire management plan called for that approach.

Nearly a century ago, fire crews at Grand Canyon National Park used tree towers — ladders attached to the park’s tallest trees — to spot wildfires. Now, in an ironic twist, the last tree tower ...

Scientists found the 500-million-year-old fossil of a "penis worm" in the Grand Canyon—and reconstructed how the creature would have used its strange mouth to feed.