"The Grand Canyon is an epic Rosetta Stone for geology," Denver Museum of Nature and Science geologist James Hagadorn said.

The Colorado River slowly cut one of the world's most epic scars into the landscape of northern Arizona. That scar, of course, is better known as the Grand Canyon. One of the top tourist ...

The Grand Canyon is America's premier travel destination, but it is also a treasure trove of ancient artifacts preserved for thousands of years.

Enshi Grand Canyon-Tenglongdong Cave UNESCO Global Geopark in the southwest of Hubei Province, China, is home to world-famous erosion and dissolution landscapes and the rich cultural heritage of the ...

In 2016, thousands of NPCA supporters helped protect the Grand Canyon from one ... National Park discovered a cave they believe human beings had never entered before. Inside this maze of limestone ...

We’re on a cliff roughly 3,500 feet above the Colorado River at the tip of the Great Thumb Mesa, a spectacular formation that thrusts out from the South Rim of the Grand Canyon like the bow of ...

A missing 20-year-old woman was found dead 150 feet into the Grand Canyon in Arizona, rangers said. Leticia A. Castillo’s body was discovered Aug. 6 below the Twin Overlooks viewpoint along ...

Approximately 700,000 years ago when molten rock erupted from a vent in nearby Hart Prairie, the mile-long Lava River Cave ... Canyon and Horseshoe Bend Day Tour from Flagstaff (685 reviews) Grand ...

That 400-mile wonder can be found under the rolling Southern hills ... Big was beautiful: Mammoth Cave, Grand Canyon, and Giant Sequoia.” The national park spans nearly 53,000 acres, so there ...

At 217 miles long, four to 18 miles wide and up to a mile deep, there’s no arguing that the Grand Canyon is one of the Seven ...