Many of the book's chapters are studies of the animals, plants, geography, and climate of the region around Arches National Monument. "Cliffrose and Bayonets" and "Serpents of Paradise" focus on Abbey's descriptions of the fauna and flora of the Arches area, respectively, and his observations of the already deteriorating balance of biodiversity in the desert due to the pressures of human settlement in the region. Abbey provides detailed inventories and observations of the life of desert plants, and their unique adaptations to their harsh surroundings, including the cliffrose, juniper, pinyon pine, and sand sage. He comments on the decline of the large desert predators, particularly bobcats, coyotes, mountain lions, and wildcats, and criticizes the roles ranchers and the policies of the Department of Agriculture have had in the elimination of these animals, which in turn has fostered unchecked growth in deer and rabbit populations, thereby damaging the delicate balance of the desert ecosystem.