This Final EIS (FEIS), Volume I, addresses the placement of Peacekeeper Intercontinental Ballistic Missiles (ICBMs) in refurbished Minuteman III silos at F E Warren AFB, Wyoming. This FEIS describes potential environmental changes to the following environmental resources: employment demand, housing, public finance, construction resources, social well-being, public services and facilities utilities, energy resources, transportation, land use, recreation, cultural resources, visual resources, water resources, biological resources, threatened and endangered species, geologic resources, noise, and air quality. Keywords: Environmental impact statements; Guided missile silos; Air Force facilities; Wyoming; Surface to surface missiles, Strategic weapons.