Rare fossils found along the Colorado River 'give us a fuller picture of what life was like during the Cambrian period,' says an expert.

A study finds traces of forever chemicals and pharmaceutical drugs in Grand Canyon waterways.

A new discovery in the Grand Canyon. A deposit of uranium has environmentalists, mines, tribes and government feuding over ...

Scientists are learning more about how water moves through the Grand Canyon, and how what happens above ground affects what ...

For the City of Flagstaff, this summer was a welcome respite from the fires and flooding of some recent years. But that was not the case for the northern part of Coconino County, where the Dragon ...

Wildfires can burn and spread differently depending on what vegetation they burn. The two fires in northern Arizona have varied landscapes. Ponderosa pine trees grow near the North Rim of the Grand ...

If you're looking for a clean campsite near the Grand Canyon, consider picking one of these nearby options, with choices for ...

Developers bought 500 acres from the town of Page, Arizona, to build a $10 billion data center adjacent to Horseshoe Bend ...

Wildfires can burn and spread differently depending on what vegetation they burn. The two fires in northern Arizona have varied landscapes. Ponderosa pine trees grow near the North Rim of the Grand ...

The North Rim of Grand Canyon National Park, closed for the past three months following the Dragon Bravo Fire, partially reopened on Wednesday, Oct. 1, the National Park Service (NPS) announced -- ...

Millions of international visitors paying a $100 surcharge can allow needed investments in the Grand Canyon for all to enjoy.