After a 100 year absence from the San Pedro River of Southeastern Arizona the American Beaver is reintroduced. This video explores the history of the area and how pioneer, mining, military and ranching activities lead to the demise of the beaver presence in the San Pedro River. A thorough investigation of the benefits of the beaver to a riparian area leads to the reintroduction of the beaver in the late 20th century. Lots of excellent footage of beaver dams, dens and habitat. This video is packed with information on social structure, diet and habits of the American Beaver.