On his first trip to the Grand Canyon Star Party, Dave Eicher joins thousands for a week of lectures, observing, and cosmic wonder.

Grand Canyon Caverns and restaurant have opened after being closed for nearly 3 years. Here's why it closed and how to go into the Grand Canyon caves.

An extreme heat warning has been issued for parts of Arizona, including the Grand Canyon, on Monday.

To behold the Grand Canyon from above, visitors usually book a helicopter tour or ride a zip line. But at the west rim of the canyon, there’s a third (and equally adrenaline-inducing) option ...

Palo Duro Canyon offers dramatic views, rugged trails, and unforgettable experiences. Find top activities, scenic spots, and must-see attractions in the Grand Canyon of Texas.

An unusually high number of hikers had to be rescued by helicopter on the Grand Canyon, and a construction site is to blame.

GRAND CANYON, Ariz. (KVOA) - As temperatures soar in the Grand Canyon, emergency calls have spiked, leading to 13 helicopter rescues in just seven days, according to park officials.

Hells Canyon might be deeper than the Grand Canyon, but it's barely 2 million years old, according to a new study.

Thousands of hikers take on the Grand Canyon’s Rim-to-Rim trek every summer. This year, however, a major trail closure has some experts raising serious safety concerns.

Thousands of hikers take on the Grand Canyon’s Rim-to-Rim trek every summer, covering more than 20 miles from one side of the canyon to the other. This year, however, a major trail closure has ...