“A convincing case for Powell’s legacy as a pioneering conservationist.”-- The Wall Street Journal "A bold study of an eco-visionary at a watershed moment in US history."-- Nature A timely, thrilling account of the explorer who dared to lead the first successful expedition down the Colorado through the Grand Canyon—and waged a bitterly-contested campaign for sustainability in the West. John Wesley Powell’s first descent of the Colorado River through the Grand Canyon in 1869 counts among the most dramatic chapters in American exploration history. When the Canyon spit out the surviving members of the expedition—starving, battered, and nearly naked—they had accomplished what others thought impossible and finished the exploration of continental America that Lewis and Clark had begun almost 70 years before. With  The Promise of the Grand Canyon , John F. Ross tells how that perilous expedition launched the one-armed Civil War hero on the path to becoming the nation’s foremost proponent of environmental sustainability and a powerful, if controversial, visionary for the development of the American West. So much of what he preached—most broadly about land and water stewardship—remains prophetically to the point today. "Ross tells Powell’s story powerfully, sprinkled with quotes from the explorer-geologist’s diary and a feeling of dramatic suspense — will he survive? — even though we know the outcome." ― The Washington Post "A convincing case for Powell’s legacy as a pioneering conservationist who maintained, ahead of his time and to no avail, that future settlement of the West must take into account the region’s essential aridity." ― The Wall Street Journal "A bold study of an eco-visionary at a watershed moment in US history." ― Nature "Ross's portrait of this complicated figure reveals how 'generations of dueling developers and environmentalists have claimed [Powell] as their guiding star.'" ― Sierra Magazine “[Powell] was — or ought to have become — a Great American Hero up there with the Founding Fathers. Now he has been handsomely rescued from neglect, if not oblivion . . . Powell lived an ungainly life, and John F. Ross has brought order to it in this engaging biography . . . This is a biography, pure and complex, the recounting of an extraordinary life and trailblazing career . . . Ross evokes bone-chilling, palm-wrinkling, stomach-curdling whitewater rapids.” ―The Washington Times "This interesting volume is a self-contained story of the life of John Wesley Powell, highlighting his many battles, political and otherwise, to bring the value and potential of the American West to the attention of his government and fellow citizens." ― NY Journal of Books "John Ross has done a spectacular job of research and reportage to bring this book to print.” ― Aspen Daily News "Ross reminds us of the potential nobility of public service and how government officials who stay true to science are, indeed, heroic." ― Washington Independent Review of Books "Ross's new biography describes Powell's talents in ethnography, geology, surveying, and mapping, along with his political acuity that helped shape America's federal science and Western land stewardship....In masterly use of primary and secondary sources, Ross makes Powell's wrangling with senators as fascinating as his river expeditions...If you've ever used a topographic map, thank Powell. His legacy deserves more attention, and Ross's biography stands to correct this." ― Library Journal (starred review) “Ross makes vivid Powell’s adventures, drawing on journals and contemporary accounts, even capturing the drama of vicious battles among scientists vying for federal funds, including Powell’s clashes with senators and bureaucrats, in this fascinating portrait.” ― Booklist “This enthralling tale by adventure writer Ross focuses on the life of John Wesley Powell (1834–1902), an explorer, geologist, and early proponent of environmental sustainability . . . Ross displays a flair for adventure writing as he recounts Powell’s service with the Union Army during the Civil War (which cost him half an arm) and subsequent work on geological surveys of the West, and he renders Powell’s 1869 expedition of the Colorado River and the Grand Canyon in breathtaking detail . . . Ross demonstrates a facility for both human history and natural history, clearly showing why Powell’s ideas matter today.” ― Publishers Weekly “John Wesley Powell was not just a great explorer—he was the great prophet of the arid West whose vision is now coming true in a dusty era of drought and wildfire. This book reminds us to pay attention to savvy people, not to our preferred dreams and delusions—in that sense it couldn’t be more timely.” ―Bill McKibben, author of The End of Nature "Powell was famous in his day as the first Anglo explorer to travel the length of the Colorado River...His voyages down that wild watercourse are the stuff of legend...Ross' view through the