Abstract The Stephen Gary Erikson papers (1957-2016) contain materials documenting Erickson's activities in opposition to the manufacture, testing, and storage of weapons of mass destruction in Utah and the Intermountain West. Included are correspondence, financial records, pamphlets, publications, news clippings, and maps. The bulk of the materials relate to Erickson's work with the non-profit organizations Downwinders and Western Solidarity. The Stephen Gary Erikson papers also contain materials...