Essential Yellowstone: A Landscape of Memory and Wonder (Paperback)
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About the Author
Michael Yochim is a former national park ranger, having worked more than twenty years in Yellowstone, four and a half years in Yosemite, and seasonal assignments in Sequoia and Grand Canyon national parks. He holds a doctoral degree in geography. He retired from the National Park Service after being diagnosed with ALS. He wrote this book using only his eyes and assistive technology that tracks their movement on a computer screen.