Powell Point, South Rim of Grand Canyon National Park, Arizona, USA.

Powell Point, South Rim of Grand Canyon National Park, Arizona, USA. Grand Canyon began forming at least 5 to 17 million years ago and now exposes a geologic wonder, a column of well-defined rock layers dating back nearly two billion years at the base. While the Colorado Plateau was uplifted by tectonic forces, the Colorado River and tributaries carved Grand Canyon over a mile deep (6000 feet / 1800 meters), 277 miles (446 km) long and up to 18 miles (29 km) wide.

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Contained in galleries: Arizona: Grand Canyon National Park

Powell Point, South Rim of Grand Canyon National Park, Arizona, USA. Grand Canyon began forming at least 5 to 17 million years ago and now exposes a geologic wonder, a column of well-defined rock layers dating back nearly two billion years at the base. While the Colorado Plateau was uplifted by tectonic forces, the Colorado River and tributaries carved Grand Canyon over a mile deep (6000 feet / 1800 meters), 277 miles (446 km) long and up to 18 miles (29 km) wide.