Great Natural Monuments -- Grand Canyon.

Great Natural Monuments -- Grand Canyon

Geologists Karl Karlstrom and Laura Crossey journey along the Colorado River to uncover the secrets of the Grand Canyon.

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UPCOMING EPISODES

Wed, 9/10 at 10:00 pm America/Chicago on Austin PBS HDTV

The descent to the Colorado River includes tackling hundreds of rapids to unveil the mysteries held in the Grand Canyon, and the place that humans occupy within it.

Sun, 9/14 at 1:01 pm America/Chicago on Austin PBS HDTV

The descent to the Colorado River includes tackling hundreds of rapids to unveil the mysteries held in the Grand Canyon, and the place that humans occupy within it.

Wed, 9/17 at 10:00 pm America/Chicago on Austin PBS HDTV

Places that tell the story of the formation of the American continent; highlighting the moment the Earth was a giant snowball; crossing wild rapids brought about by the clash between the Colorado River and the most ancient rocks of the Grand Canyon.

Sun, 9/21 at 1:00 pm America/Chicago on Austin PBS HDTV

Places that tell the story of the formation of the American continent; highlighting the moment the Earth was a giant snowball; crossing wild rapids brought about by the clash between the Colorado River and the most ancient rocks of the Grand Canyon.