The study says the Colorado River took a convoluted path as it carved the canyon — and got help from an ancient lake.

There’s a new theory about what helped form one of America’s grandest natural wonders - The key to solving a nearly 7 billion-year-old geological mystery could be microscopic ...

Add Yahoo as a preferred source to see more of our stories on Google. Millions of summer vacationers to Grand Canyon National Park might have to adjust their travel plans — now, and in the future. The ...

The more remote and less visited side of the Grand Canyon is getting ready to welcome visitors again. But the Grand Canyon North Rim won't be ready to host overnight travelers yet, just one year after ...

Add Yahoo as a preferred source to see more of our stories on Google. Millions of summer vacationers to Grand Canyon National Park might have to adjust their travel plans — now, and in the future. The ...

Researchers say the ancestral Colorado River formed an ancient lake in northern Arizona roughly 6.6 million years ago, which spilled out westward onto the landscape that would eventually become the Gr ...

The Dragon Bravo wildfire continues to burn on the northside of Grand Canyon National Park, closing access to visitor services on the canyon’s North Rim for the remainder of the season. As of July 24, ...

In a new paper, researchers argue the Grand Canyon was formed when an ancient lake on what is now the Navajo Nation spilled ...