Cleaving an Unknown World: The Powell Expeditions and the Scientific Exploration of the Colorado Plateau

by Roy Webb

In 2009 the University of Utah Press and the Utah State Historical Society co-published three volumes of long out-of-print journals, letters, and other documents from John Wesley Powell's expeditions down the Colorado River. We are proud to announce the fourth and final volume. Cleaving an Unknown World collects Powell's journal (Smithsonian Journal of History, 1968); Jack Hillers's diary and photographs, previously published as Photographed...

• Format: Paperback
• Language: English
• ISBN: 1607811464
• ISBN13: 9781607811466
• Release Date: December 2011
• Publisher: University of Utah Press
• Length: 280 Pages
• Weight: 1.45 lbs.
• Dimensions: 0.8" x 8.4" x 9.9"
• Age Range: 14 years and up
• Grade Range: Grade 9 and higher