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How did uplift of the Colorado Plateau help form the Grand Canyon?

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Snow-capped, rugged Atlas Mountains encircle a green valley with scattered trees, terraced fields, and a few small buildings in Morocco. — valley The rugged Atlas Mountains surround a valley in Morocco.

The uplift of the Colorado Plateau was a critical geological event that enabled the formation of the Grand Canyon by significantly increasing the erosive power of the Colorado River.12

This process, known as rejuvenation, occurred as the region was pushed upward, which steepened the river's path and forced it to cut deeper into the earth through a process called vertical entrenchment. By increasing the gradient of the river, the uplift allowed the water—carrying a heavy load of sediment—to carve the canyon to its current depth of more than a mile.132

While the river's downward cutting created the depth of the chasm, the uplift provided the necessary elevation and energy for this deep incision to occur over the past six million years. This phenomenon is a classic example of how tectonic activity can drive the development of spectacular canyons and gorges by reinvigorating the erosive capacity of existing river systems.123