What makes the Grand Canyon so deep?

Indeed, sir, the Grand Canyon’s remarkable depth is largely due to the Colorado River, which has been carving through layers of rock for millions of years. Over time, the river's persistent erosion, combined with tectonic uplifts that gradually raised the land, allowed the canyon to deepen significantly. The result is a breathtaking chasm that reveals nearly two billion years of Earth’s geological history, and quite a striking view from below.