Fonds reflects Barbarash’s activities relating to anarchism generally and the animal rights movement specifically, and consists of: articles, brochures and pamphlets, clippings, court documents, correspondence, personal notes, and subject files. Subjects include: animal rights, ALF, Earth First!, legal proceedings, logging, marijuana legalization, People for the Ethical Treatment of Animals (PETA), pro-gun lobby, trophy hunting, and the Vancouver 5.

Fonds consists of files documenting the silviculture issues considered by PASIS, and are arranged under the following series: Biodiversity and Forest Management, BC Reforestation Methods, Clearcutting, Forest Resource Development, Government Implementation of its Laws and Policies, Pesticide/Herbicide Concern, Public Awareness, and Correspondence and Reports.