Scientists are investigating whether an asteroid impact could have triggered Earth’s first great flood, reshaping the planet’s surface billions of years ago. Evidence suggests that a massive space ...

Critics argue that failing to flood the Grand Canyon on a regular basis causes its beaches to wash away and has a devastating impact on its wildlife. The Bureau of Reclamation has said it will not ...

Somewhere between “outdoorsy” and “adventurous,” she wasn’t enough of an adrenaline junkie to seek out days of isolation beneath the Grand ... record of the plants that existed in the ...

Courtesy of the Family of Chenoa Nickerson On Aug. 22, Chenoa, who turned 33 that day, and her husband, Andrew Nickerson, were hiking in the park when she was swept away in a flash flood that ...

A 500 million-year-old trilobite fossil left ladder-like ... issue titled The Cambrian of the Grand Canyon: Refinement of a Classic Stratigraphic Model. UNM’s Karl Karlstrom examines torn-up sediment ...

Just like the scene of a crime, the rock record of the Grand Canyon is much more complicated than what we currently know and its story is still being written.” Trilobite fossil from Grand Canyon’s ...

“The Tonto Group holds a treasure trove of sedimentary layers and fossils chronicling the ... helping to further decode it. Because Grand Canyon rocks record global changes in climate and ...

"The Tonto Group of Grand Canyon holds a treasure trove of sedimentary layers and fossils chronicling the Cambrian Explosion some 500 million years ago, when the first animals with hard shells ...

Any boomer, gen xer, millennial, gen zer or alpha who’s studied geology has likely gained foundational knowledge from Edwin Dinwiddie McKee’s landmark studies of the Grand Canyon’s sedimentary record ...

On any given summer day, Grand Canyon National Park draws 17,000 to ... the Colorado River and drowned after his boat flipped near Fossil Rapid. The man received CPR after his body was recovered ...

Considering the fact that sharks have swum the world’s seas for more than 400 million years, the animals have left behind an extensive fossil record ... the Grand Canyon in Arizona, Mesa ...

Share GRAND CANYON ... the river near Fossil Rapid, about 10 miles (16 kilometers) upriver from Tapeats Creek. The body of 33-year-old woman from the Phoenix suburb of Gilbert was also found Sunday ...