Carving the Grand Canyon: Evidence, Theories, and Mystery

The Grand Canyon is one of Earth’s most iconic landscapes, yet geologists still debate how—and when—it formed. Geologist and author Wayne Ranney has spent more than five decades studying the canyon and following the evolving theories behind its creation. Join him for a journey through deep time as he explores competing ideas, examines recent discoveries, and reveals why this natural wonder continues to intrigue scientists and visitors alike.