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The Desert Speaks
Grand Canyon, The Human Touch
Season 15
Episode 1509
Host David Yetman joins his brother, geologist Dick Yetman, for an exploration of the traces of humans along the Colorado River and Grand Canyon region. They observe sacred salt mines from the boat, visit the intersection of the Little Colorado River with the main river, learn the history of rapids and spend time with scientists studying the effects of the Glen Canyon Dam.
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A trip through the Valley of Tehuacán to the ancient city of Oaxaca in southern Mexico.