Castlewood Canyon State Park in Franktown, Colorado is one of those places that makes you do a double-take and wonder if someone forgot to tell you that Colorado secretly contains portals to Mars.

Discover stunning hikes in Illinois for 2026! No permits needed, just lace up your boots and explore canyons, forests, and breathtaking views.

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.

Tonto Natural Bridge State Park sits in the mountains near Pine, and it’s home to one of the world’s largest natural ...

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

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

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 ...

A 30-year-old man from Idaho drowned on the Colorado River last week after he was swept overboard while running a powerful rapid in Grand Canyon National Park.

Far beneath the Atlantic Ocean, about 1,000 kilometers off Portugal’s coast, lies a colossal underwater canyon system that dwarfs even the Grand Canyon. Known as the King’s Trough Complex, this ...

Faced with recent major breaks to the Transcanyon Waterline (TCWL), the National Park Service (NPS) and contractor Stronghold Engineering Inc. have accelerated work across multiple locations on the ...