"Scroll Down through History" displays the layers of rock exposed within the Grand Canyon and shows when in earth's history they formed. The region where the Grand Canyon now lies begins to shift ...

Could the grand canyon hide evidence of ancient earthquakes? The post Could the Grand Canyon Hide Evidence of Ancient ...

Is that the right word for the Colorado Plateau, this thirsty sprawl of gaudy-hued stone festooned with such names as Hell Roaring Canyon ... dozens of layers of rock: limestones, mudstones ...

Marble Canyon ... of the Grand Canyon, the stillness allows the subtlest natural sounds to emerge, from the call of a peregrine falcon overhead to the scamper of a scorpion underfoot. Rock ...

The Grand Canyon was carved out of rock by the Colorado River over millions of years. The strata of the canyon is discussed to explain what the layers tell us about how the canyon formed.

Our family just returned from our first visit to the Grand Canyon and let me tell ... colors shift with the light, the layers of history etched into the rock, the kind of silence that feels ...