In “Ferdinand Vandiveer Hayden and the Founding of the Yellowstone National Park,” the Geological Survey presents a compelling examination of the pivotal role played by geologist Ferdinand Hayden in the establishment of America'Äôs first national park. This meticulously researched work combines a narrative style with rich visual documentation, capturing not only the geological wonders of Yellowstone but also the socio-political landscape of the 19th century. Through detailed analysis of Hayden'Äôs expeditions and the scientific findings that informed the conservation movement, the text situates the importance of Yellowstone within both geological and environmental literature, revealing insights into the relationship between natural landscapes and national identity. The Geological Survey, an institution dedicated to public understanding of geological resources, honors Hayden's legacy through this exploration. Hayden's profound commitment to the study of the American West, alongside his role as a pioneer in early conservation efforts, provides essential context for his vision of safeguarding Yellowstone's unique geological features. His expeditions were not only scientific endeavors but also reflective of the broader American ethos of exploration and preservation that was emerging at the time. This book is a must-read for environmental historians, geology enthusiasts, and anyone interested in America'Äôs national parks. By shedding light on Hayden's contributions, it invites readers to appreciate the intricate balance between humanity and nature and inspires a deeper understanding of the motivations behind the conservation movement. It is a significant addition to the literature on environmental history and national park advocacy.