The Columbian white-tailed deer was federally listed as endangered in 1968, at which time only a small population was known to survive on islands and a small area of mainland in Washington along the lower Columbia River. In 1978, a small population of Columbian white-tailed deer was identified in Douglas County, in Southwest Oregon, and subsequently listed as endangered. A recovery plan was published in 1983. Since then, the Douglas County population has rebounded and was delisted in July 2003.