Jack TurnerJack Turner is the president of Exum Mountain Guides and School of American Mountaineering in Grand Teton National Park. He has led treks in India, Pakistan, Nepal, China, Tibet, Bhutan, and Peru. His first book was a collection of environmental essas, The Abstract Wild; it was followed by a memoir, Teewinot: A Year in the Teton Range and Travels in the Greater Yellowstone. He is a visiting scholar at the University of Utah and has been honored with a 2007 Whiting Foundation Writer's Award. He lives in Grand Teton National Park with his wife, Dana, and their dog, Rio. Read More Read Less