Name: Down the Great Unknown
Author: Edward Dolnick

<p>Drawing on rarely examined diaries and journals, Down the Great Unknown is the first book to tell the full, dramatic story of the Powell expedition. On May 24, 1869 a one-armed Civil War veteran, John Wesley Powell and a ragtag band of nine mountain men embarked on the last great quest in the American West. The Grand Canyon, not explored before, was as mysterious as Atlantis — and as perilous. The ten men set out from Green River Station, Wyoming Territory down the Colorado in four wooden rowboats. Ninety-nine days later, six half-starved wretches came ashore near Callville, Arizona. Lewis and Clark opened the West in 1803, six decades later Powell and his scruffy band aimed to resolve the West' s last mystery. A brilliant narrative, a thrilling journey, a cast of memorable heroes — all these mark Down the Great Unknown, the true story of the last epic adventure on American soil.</p>

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