Natural pozzolans have served as a building material in Arizona for many decades ... most notably the construction of the Glen Canyon Dam and Powerplant. Pozzolan was trucked 110 miles to the ...

SUPAI — The body of an Arizona woman who went missing in the Grand Canyon National Park after a flash flood days earlier was recovered Sunday, park rangers said. The body of Chenoa Nickerson ...

Additionally, North Cheyenne Canyon and Gold Camp Roads will remain closed indefinitely. The closures come after a road collapse in North Cheyenne Cañon Park. The hazardous conditions are ...

In one epic aerial journey, Wings Over Grand Canyon reveals high alpine forests, spectacular lakes and secret canyons never seen this way.