This book investigates the intellectual origins and development of Frederick Jackson Turner's influential Frontier Thesis. Billington, a distinguished historian of the American West, examines the historical context, Turner's personal background, and the intellectual currents of the late 19th century that shaped his seminal argument about the role of the frontier in shaping American character and institutions.

As a foundational text in American historiography, Billington's work is widely recognized for its comprehensive scholarship on the Frontier Thesis. The book is valued for its detailed exploration of Turner's intellectual journey and the broader historical context. It serves as an essential resource for understanding the evolution of historical thought regarding the American West. The work is considered a significant contribution to the study of how historical narratives are constructed and evolve.