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 ...

A new collaborative study led by the U.S. Geological Survey provides strong evidence that the Grand Canyon was carved out by ...

Plenty of scenic viewing opportunities, but limited amenities and services will greet North Rim travelers for first season after Dragon Bravo Fire.

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

The era of driving straight to the rim or the lakeshore is over; 2026 has cemented strict access controls at Grand Canyon and Moraine Lake to protect these fragile ecosystems. For the first time this ...