Description: In the early 1900s, biologists believed Columbian white-tailed deer had disappeared from the western valleys of Oregon, victims of agricultural and residential development. But enough survived that, today, there are two self-sustaining populations—one in southwest Oregon near Roseburg, the other along the Columbia River in the Columbian White-Tailed Deer National Wildlife Refuge. Date: 13 April 2006, 13:05. Source: white-tailed_deer_boatner_odfw. Author: Oregon Department of Fish & Wildlife.