Occurrence of the Garter Snake, Thamnophis sirtalis, in the Great Plains and Rocky Mountains

"Occurrence of the Garter Snake, Thamnophis sirtalis, in the Great Plains and Rocky Mountains" by Henry S. (Henry Sheldon) Fitch, with a collaborator, is a scientific study of the garter snake in the Great Plains and Rocky Mountains. Because garter snakes have an extreme range from the Atlantic to the Pacific, this publication looks at the taxonomic history, differences in subspecies, and ecological observations of garter snakes. It also discusses the difficulties in identifying the snakes and challenges in mapping the snakes in those regions, with the goal of understanding the garter snake in its unique ecosystems.