In 1955 photographer Charles Eggert and renowned river guide Don Hatch set off down the Green River with six others to duplicate the 1870s journey of John Wesley Powell. With dams soon to be built at Flaming Gorge and Glen Canyon, they planned to film the voyage and be the last to travel these waters before the landscape changed forever. Eggert's film A Canyon Voyage debuted successfully after the trip, but his written narrative of the river, its landscape, its people, and the adventures of the crew was never published. This book finally brings Eggert's writings out of the archives and into the public eye. With his keen photographer's vision and colloquial voice, Eggert describes canyons and towns now deep under water as he tells the story of friendships forged upon the rapids and currents of the rivers. Roy Webb's foreword provides historical context; river historian Alfred E. Holland Jr. introduces Eggert, the man who transformed into an environmentalist after visiting the West; and Sarah Holcombe's afterword looks at what transpired in the lives of all eight crew members after the journey. Color and black-and-white illustrations further enliven the text. An engaging read, this is an important piece of river history that also shines light on Eggert's tremendous influence as a conservation cinematographer.

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 All the Best Scenery, edited by Don D. Fowler (University of Utah Press, 1972); original maps from Francis Marion Bishop (Utah Historical Quarterly, 1969); Frederick S. Dellenbaugh's letters (Utah Historical Quarterly, 1969); and John C. Sumner's journal from the first Powell expedition (Utah Historical Quarterly, 1969). Roy Webb's foreword provides the context for these disparate pieces. This beautifully illustrated book features Hillers's photographs-long regarded as a remarkable and unique record of the Colorado River and the Grand Canyon. Cleaving an Unknown World belongs in the library of any reader interested in the exploration of the American West.