"R. Grace Morgan's important study of the impact of beaver, bison, and horse on the lifeways of Indigenous people of the Northern Great Pains remains relevant in our times. Morgan deftly analyzes the long-term ecological history of this region, where animals, humans, fire water, and drought have struck important interrelationships.  Her insights can significantly influence our assessments of the economic trajectories and environmental sustainability of the Great in the modern age." - George Colpitts, author of Pemmican Empire: Food, Trade, and the Last Bison Hunts in the North American Plains