Ninety years ago Great Plains archaeologists such as Waldo Wedel and William Duncan Strong made foundational contributions to American archaeology, enabling new discoveries, insights, and interpretations. This volume explores how twenty-first-century archaeologists have built upon, remodeled, and sometimes rejected the inferences of these earlier scholars with updated overviews and analyses. Contributors highlight how Indigenous Plains groups participated in large-scale social networks in which ideas, symbols, artifacts, and people moved across North America over the last 2,000 years. They also discuss cultural transformation, focusing on key demographic, economic, social, and ceremonial factors associated with change, including colonization and integration into the social and political economies of transatlantic societies. Cultural traditions covered include Woodland-era Kansas City Hopewell, late prehistoric Central Plains tradition, and ancestral and early historic Wichita, Pawnee and Arikara, Kanza, Plains Apache, and Puebloan migrants. As the first review of Plains archaeology in more than a decade, this book brings studies of early Indigenous peoples of the central and southern Plains into a new era.