Hint: This river is renowned for its significant role in shaping the Grand Canyon's stunning landscapes over millions of years…

The river that runs through the Grand Canyon is the Colorado River. This river is renowned for its significant role in shaping the Grand Canyon's stunning landscapes over millions of years. Originating from the Rocky Mountains in Colorado, the river traverses several states, including Utah, Arizona, Nevada, and California, before emptying into the Gulf of California in Mexico. Its powerful flow has carved out the steep walls and intricate formations of the Grand Canyon, making it a central feature of this iconic natural wonder. The Colorado River is not only vital for the canyon's geology but also for the ecosystems and communities that depend on its water.