"Where did American literature start? The familiar story of Emerson and Thoreau has them setting up shop in Concord, Massachusetts, and determining the course of American writing. West of Emerson overhauls this story of origins as it shifts the context for these literary giants from the civilized East to the wide-open spaces of the Louisiana Purchase. Kris Fresonke tracks down the texts by explorers of the far West that informed Nature, Emerson's...