Carving the Grand Canyon: Evidence, Theories, and Mystery
Dec 8, 2026, 7:00 PM ET<a href="https://smithsonianassociates.org/ticketing/programs/grand-canyon?utm_source=&utm_medium=&utm_campaign=&utm_content=&promo=276223" target="_blank" rel="noopener" title="https://smithsonianassociates.org/ticketing/programs/grand-canyon?utm_source=&utm_medium=&utm_campaign=&utm_content=&promo=276223">smithsonianassociates.org…</a>
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.