Colorado River

The Colorado River and the trajectory of its current flow were formed roughly 5 million years ago. Due to tectonic activity, the Colorado Plateau continued to rise from 5 million to 2.5 million years ago, thereby shifting the direction of the river. With its new path, the river began to erode the area in present-day Arizona now known as the Grand Canyon. The canyon is situated just a few miles south of the river section captured in this Overview.

36.417100°, -111.858300°

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