Which river flows through the Grand Canyon?
Answer: The Colorado River, which flows through the Grand Canyon touches seven states. The general scientific consensus holds that the Colorado River carved the Grand Canyon beginning 5 million to 6 million years ago. Running from Colorado’s Rocky Mountains to the Gulf of California, the Colorado River is 1,450 miles long. Within Grand Canyon National Park itself, the Colorado River’s 277 miles flow at an average speed of four miles per hour. On average, the Colorado River within the Grand Canyon is 40 feet deep.