Plan your Arizona trip with these stunning towns, packed with scenic views, local eats, and day trips you’ll talk about all ...

In 1869, John Wesley Powell was studying layers of rock in the Grand Canyon when he noticed an unconformity in the layers. Around a billion years were missing, and the problem turned out to be global.

The town green, called “The Green” with typical Pennsylvania straightforwardness, sits right in the middle of everything, ...

President Theodore Roosevelt made the area a game preserve in 1906 and created Grand Canyon National Monument in 1906, ...

Explore these New York spots where culture, nature, and innovation come alive, showing the state’s energy like never before.

More than 50,000 years ago, a meteor hit Earth and formed what we now call Meteor Crater in northern Arizona. But new ...

A layer of rock just 520 million years old sat directly on top of ancient rock dating back 1.4 to 1.8 billion years.

I've visited 50 of America's 63 national parks, so I've have earned the right to my opinion on what I consider the 20 worst ...

We can all agree that the national parks in the United States are breathtakingly beautiful and chock-full of opportunities to get outdoors in some of the most dramatic settings on Earth. The ...

The Giles-House copyrighted e-book, “Geology of the Lower Owyhee River, Oregon’s Grand Canyon,” is now online at www.owyheegeology.com as a free downloadable document. An improved second edition will ...