An inventory of amphibians and reptiles was conducted at Death Valley National Park (DEVA) in 2002- 2004 as part of the National Park Service Inventory and Monitoring Program in the Mojave Desert Network. Objectives for this inventory were to: 1) Inventory and document the occurrence of reptile and amphibian species occurring at DEVA, primarily within priority sampling areas, with the goal of documenting at least 90% of the species present; 2) document (through collection or museum specimen and literature review) one voucher specimen for each species identified; 3) provide a GIS-referenced list of sensitive species that are federally or state listed, rare, or worthy of special consideration that occur within priority sampling locations; 4) describe park-wide distribution of federally- or state-listed, rare, or special concern species; 5) enter all species data into the National Park Service NPSpecies database; and 6) provide all deliverables as outlined in the Mojave Inventory and Monitoring Network Biological Inventory Study Plan. Methods included daytime and nighttime visual encounter surveys, road driving, and pitfall trapping. Survey effort was concentrated in predetermined priority sampling areas, as well as in areas with a high potential for detecting undocumented species. 37 species were recorded during surveys, including two species new to the park. During literature review and museum specimen database searches, study authors recorded three additional species from DEVA, elevating the documented species list to 40 (four amphibians and 36 reptiles). Based on these surveys, as well as literature and museum specimen review, this study estimates an overall inventory completeness of 92% for Death Valley and an inventory completeness of 73% for amphibians and 95% for reptiles.