The National Weather Service warns: "A Red Flag Warning means that critical fire weather conditions are either occurring or ...

Less explored national park sites in Arizona offer stunning scenery without the crowds found at the Grand Canyon. Grand ...

A Flagstaff-based hub for regional science -- and for the protection of the Grand Canyon and the Colorado River -- could be ...

In 1893, President Benjamin Harrison offered a modicum of preservation by using his executive powers to create the Grand Canyon Forest Reserve. Fifteen years later, when Congress again refused to ...

Bison typically roam the tall grasses of the American prairie, but a herd in Grand Canyon National Park has found ways to thrive in forest and desert habitats. Courtesy of NPS Bison typically ...

Conservation groups gathered to support two national monuments, opposing a plan by the Trump administration to open lands to ...

Petrified Forest National Park rivals the Grand Canyon with its unique fossils, expansive vistas, and rich geological history ...