A newly published study in GSA Today has upended decades-old theories about how some of the Grand Canyon’s oldest layers — ...

The Cambrian-age Tonto Group is a set of rocks famous for holding clues to the burst of new life that reshaped Earth 500 ...

North America's deepest gorge, Hells Canyon, which slithers along the border of Idaho and Oregon, is a surprisingly new ...

Hite would go on to solicit capital from inventors for mining operations in the canyon including the formation of the Denver ... company that would connect Grand Junction, Colorado, to the ...

It's a testament to Mother Nature's strength and power, so vast and spectacular that it's often considered the "Grand Canyon of Washington."The Grand Coulee in Washington is an ancient river bed gorge ...

Hells Canyon is the deepest river canyon in the United States. Now scientists have solved the mystery of when it formed.

Recent findings suggest that these formations, comparable in size to the Grand Canyon ... rock tossed outward by the canyon-forming impact may be easier to reach near the polar zone. Those samples ...

two massive canyons likely formed on the moon in a span of less than 10 minutes, according to new research. The extraordinary formations, each comparable in size to Earth’s Grand Canyon ...

And unlike the Grand Canyon, carved over millions of years by the flow of the Colorado River, Vallis Schrödinger and Vallis Planck formed in just ... In the process, it ejected fusillades of ...