The Canyon's Age Sparks Fierce Scientific Debate Scientists have spent over a century arguing about when the Colorado River first carved through the Colorado Plateau. A diverse set of geologic studies ...

Introducing the Grand Canyon / Stanley S. Beus, Michael Morales -- Precambrian crystalline core / R. S. Babcock -- Grand Canyon Supergroup : Unkar group / J. D. Hendricks, G. M. Stevenson -- Grand ...

Hidden canyons, glowing caves and alien plateaus quietly outshine icons, proving Earth still keeps its wildest wonders yet ...

Geology of the older precambrian rocks of the upper granite gorge of the Grand Canyon / R.S. Babcock, E.H. Brown, and M.D. Clark -- The younger precambrian rocks of the Grand Canyon / Trevor D. Ford ...

When it comes to hiking through Arizona, it's hard not to become some kind of geology expert. I've likened it to someone visiting a foreign country who does not speak the language. After a few weeks, ...

The Grand Canyon is Arizona's most famous landmark. Here's everything to know if you're going to visit, plus 10 interesting things to know.

Move over, Grand Canyon! If you're looking for a unique Arizona location that features gorgeous views and beautiful history, you'll want to check out this one.