 Some of the plant species in the Wilderness - such as Brewer's spruce, Sadler oak, "Siskiyou lewisia", and a number of "sclerophyllous" shrubs - are found only in southwestern Oregon and northwestern California.The Wilderness is home to a wide variety of animals.Black-tailed deer are common, while black bear, coyotes, bobcats, ring-tail cats, and mountain lions are less common but still may be seen.