Climbing Redwood Giants on National Geographic Channel

Climbing Redwood Giants on National Geographic Channel Over three hundred feet above northern California are the canopies of the redwoods, the world’s tallest trees. Humboldt State University’s Steve Sillett, the first researcher to explore the redwood canopy, is obsessed with monster redwoods. Just when Sillett thinks he has climbed and measured an unbeatably tall tree,…

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