This site provides detailed information on the efforts of the U.S. Department of Energy's (DOE) Office of Legacy Management to ensure the protection of human health and the environment on inactive sites associated with nuclear weapons research, testing, development, and production. The sites include uranium mines, production and storage facilities for bomb components, and research laboratories. The website provides perspective on the widespread permeation of the nuclear weapons complex into all regions of the United States. Fact sheets and documentation, histories, photographs, and maps are included for each legacy management site.