This compilation catalogues the writings on the diverse vertebrate species within Colorado's boundaries beginning with the Escalante Expedition, which skirted the western slope a century before Colorado's statehood. Because of its geographical location-between East and West, North and Southwest, its altitudinal range of more than 11,000 feet, and its consequent variety of ecosystems from desert shrub to alpine tundra, Colorado ranks high among the fifty states for its variety of vertebrates. With such an abundance of these vertebrates, biologists and observant laypersons have had much to write about. This comprehensive bibliography is divided into major sections: General Natural History, Fishes, Amphibians, Reptiles, Birds and Mammals. Each taxonomic group has a general section, followed by listings at taxon levels down to alphabetically-arranged species. The bibliography is especially complete with respect to periodical literature through 1995. Colorado Vertebrate Zoology cites resources for studying both well-researched vertebrates and those needing more study.