In 1987, Steve Sillett, a Reed College student, began climbing redwoods near Crescent City along the northern California coast. Despite his fear of heights, he grew so fascinated with supertall trees that he earned his Ph.D. in botany and became a leading expert in tall tree ecosystems. At the same time, Michael Taylor, who had been obsessed with redwood trees since childhood, began seriously searching for the tallest trees in the North Coast redwood groves. Michael was intensely afraid of heights and developed instruments for measuring trees from the ground. Eventually Steve and Michael met, recruited other enthusiasts, and with one measuring and the other climbing, discovered many giant trees. The tallest, in Humboldt Redwoods State Park, is the Stratosphere Giant, measured at over 370 feet.
Climbing supertall trees is a highly hazardous endeavor, to say the least. Preston describes in detail how Sillett and others figured out methods and equipment for climbing trees as safely as possible, minimizing the danger of falling to death from hundreds of feet above the earth. Using a system of ropes, knots, harnesses, and pulleys, they "skywalk" through trees in a graceful and athletic ascent. In passages I couldn't put down, the author paints an intimate picture of these daring explorers, their loves and losses, as they devote their lives to this "final frontier" of the unexplored worlds above us.
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