The wildfire that destroyed a Grand Canyon lodge this month was the latest blow to the National Park Service staffing and funding cuts.

Some effects of Arizona's Dragon Bravo Fire are clear, but what's happened to wildlife may not be known until the flames die ...

"We're losing resources within the Grand Canyon," Schmeeckle said. This issue was one topic discussed by Schmeeckle and others who participated in a symposium on the canyon's deterioration last week ...

The biodiversity in the Grand Canyon is dependent on annual buildups of sediment rich sandbars, which have eroded after 20 years of drought. Because of the strong snow pack from this past winter ...

Researchers flooded the Colorado River last week, in an attempt to reverse erosion in the Grand Canyon. NPR's Liane Hansen speaks to Denny Fenn, director of the Southwest Biological Science Center ...

Tribal lands, such as those belonging to the Havasupai, Hualapai, Navajo and Hopi Nations, require special permits for access ...

Find out that the Grand Canyon, a colossal Arizona chasm carved by the Colorado River, showcases billions of years of ...

The Grand Canyon’s North Rim in Arizona also closed Thursday because of a wildfire on adjacent Bureau of Land Management land ...

So the Grand Canyon appears to be a work in progress, ... But it was the dominant player, carving a trench that exposed layers of rock along its side to wind and water erosion.