How the Grand Canyon Took Shape 5.6 Million Years Ago Is Still Debated, but Ancient Lakes May Help Explain

Learn how the Colorado River began flowing through the Grand Canyon during the late Miocene, after ancient lakes spilled over millions of years ago.

from All Articles | Discover Magazine https://www.discovermagazine.com/how-the-grand-canyon-took-shape-5-6-million-years-ago-is-still-debated-but-ancient-lakes-may-help-explain-48976