The book "Geology of the Calvin Coolidge Forest Reserve" by the famous author Harry Dodge is a study of the complex geological composition of this unique natural object. In his work, he systematically describes the geological formations that formed in different periods of the Earth's development, analyzing their features and influence on the formation of the landscape of the region. Dodge examines in detail the rocks, water reservoirs, volcanic activity, and other natural phenomena that contribute to understanding the unique geological heritage of the Calvin Coolidge Forest Preserve. This book will be a fascinating source of knowledge for anyone interested in geology and natural science.