With tributaries of history, geography, engineering, and environmental science, Boyce Upholt's The Great River brings clarity and cohesion to a topic that intermixes complex stories across, quite literally, a million square miles. Using elements of travelogue and including fine maps, this compelling book takes readers through the making and unmaking of the Mississippi River, and leaves them with a hunch that, in the end, the river will remake itself.–Richard Campanella, Associate Dean for Research, Tulane University School of Architecture and author of Draining New Orleans