High angle view of river passing through canyon, Colorado River, Grand Canyon National Park, Arizona, USA

River flowing along mountains, Colorado River, Grand Canyon, Arizona, USA

Bridge across canyon, Navajo Bridge, Grand Canyon National Park, Arizona, USA

Waterfall, Grand Canyon, Arizona, USA

Waterfall, Grand Canyon, Arizona, USA

River with rock formations in background, Colorado River, Grand Canyon, Arizona, USA

Grand Canyon, USA

Petrified Forest National Park, Arizona, USA

Grand Canyon, South Rim, Arizona, USA, view upon

Petrified Forest National Park, Arizona, USA, high angle view

Low angle view of a hiker scaling a cliff, Grand Canyon National Park, Nevada, USA

Glen Canyon, USA

Colorado River, Grand Canyon National Park, Arizona, USA