of Colorado is a book about the cultural tradition of a people. John Wesley Anderson takes his readers on a journey of discovery through his study of the Native American tradition of modifying trees for navigational, medicinal, burial, educational and spiritual purposes. Working in close association with members and elders of the Southern Ute Reservation, the study of previous researchers, and people familiar with these culturally modified trees, Anderson has built a compelling and fascinating work which greatly moves forth the documentation and preservation of these cultural and spiritual landmarks.