The Iron Horse in Indian Country examines the relationships between Indigenous peoples and railroads that unfolded in the American West during the nineteenth and early twentieth centuries.Historians have long pondered the railroad's profound and far-reaching role in transforming the United States' economic, political, social, and physical landscapes. The Iron Horse in Indian Country de-centers and reframes this scholarship by spotlighting both the inner workings of railroad colonialism and the means by which Indigenous peoples incorporated railroads into their own networks. By foregrounding Indigenous entanglements with railroads, La Rocca Link challenges deep-seated stereotypes of Indians as either violently resisting the juggernaut of the Iron Horse, or simply vanishing at the first blast of a locomotive's whistle.This project begins with a study of Indigenous contributions to the Pacific Railway Surveys of the 1850s, and extends through to the rise of automobile travel and the passage of the Indian Citizenship Act in the 1920s. The Iron Horse in Indian Country demonstrates that even as railroad-driven colonialism brought calamities to Indigenous communities, Native peoples turned trains into a literal and figurative vehicle of survival, repurposing this novel technology to establish themselves as decisive actors in a modern world.