Jon Wurl's river books
River-Horse by William Least-Heat Moon Heat-Moon, known for the classic road book Blue Highways, takes a boat east-to-west all the way across the continent. Rivers are a unique view into society, and ourselves.
Down the River by Edward Abbey In my view a superior book to Desert Solitaire, that captures Abbey's adventurousness, studiousness and iconoclasm.
The Exploration of the Colorado River by John Wesley Powell If you ever run the Green through Dinosaur National Monument, take this book and read it out loud in camp.
Life On the Mississippi by Mark Twain Not a whitewater book, but a humorous account of how the river rules.
Nature Noir by Jordan Fisher Smith The inside and often dark story of foothills society, and the irony of the preservation of the land behind the now-defunct Auburn Dam.