Archival objects in this container: Recreation information, 1985-1995 Environmental statement/acquisition plan/management plan, 1980-1991 Economics, 2007-2008 Geology, 1972-1973 Henderson, 1965-1986 Historic houses, sites, etc., 1970-1998 History, 1963-1995 Hoover Dam brochures and histories, 1966-1986 Native Americans of North America, 1967-1990