Every Layer of the Grand Canyon, Explained
19:20
Geology of The Grand Canyon (~2 Billion Years of Time!) GEO GIRL
43:36
How Geologists Discovered and Mapped a Great Seaway
21:58
Mysterious Forces of the Grand Canyon 🌟 Full Documentary
44:48
Do Ancient Shorelines Reveal the True Origin of the Grand Canyon? - Dr. Steve Austin
11:31
When a Billion Years Disappeared
48:46
A Tour of Earth's Ancient Supercontinents
56:47
How did the Rocky Mountains Form?
20:47