beautiful colors of the sky and folding hills at the petrified national forrest, az, usa

arid arizona basin beautiful bend boulders cactus canyon canyons cliff cloudscape colorado colors contrasting dams deposits desert dry expanse face flash flood folding forest forrest glenn gorge hills horseshoe impressive landscape martian mineral mountains movies national navajo open page perfect petrified picture pnf red river rock rocks rugged sandstone scenic sky snow sunshine usa vermillion weather western wide wilderness wildflowers