Though the Grand Canyon and Yellowstone often dominate the national-park hype, Bryce Canyon National Park has quietly earned ...

Situated between Navajo and Hopi tribal lands, this stunning canyon offers a mix of colorful hoodoos, remote trails, and ...

Hike through secret slot canyons, spot endangered California condors, visit sacred Navajo sites, and kayak a stunning 10-mile ...

The Grand Canyon may seem to be a simple case of "river carves rock," but to geologists, its formation is still puzzling. Ira Flatow and guests... Solving The Riddle Of The Grand Canyon's Formation ...

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 ...

A tourist visiting Pingshanhu Grand Canyon in Zhangye, Gansu, on October 12 captured a hilarious sight – a rock formation ...

WASHINGTON -- Gazing into the majestic Grand Canyon, awe-struck visitors inevitably ask: "How old is it?"Far older than generally thought, says new evidence that scientists culled from caves lining ...

Earlier this year, Marble Canyon Lodge reopened after an extensive transformation, putting the Navajo Nation community at the ...

(CNN) — About 3.8 billion years ago, two massive canyons likely formed on the moon in a span of less than 10 minutes, according to new research. The extraordinary formations, each comparable in size ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. About 3.8 billion ...