Clark's nutcracker
Despite its name, there are considerably fewer than a thousand lakes—about seven major lakes lie within the wilderness. The largest is Eiler Lake, named after Lu Eiler the person who discovered Thousand Lakes Valley. All of the larger lakes contain populations of trout. Wildlife includes black-tailed deer, black bear, pika, pine marten, northern goshawk, spotted owl, pileated woodpecker, and Clark's nutcracker. Even elk have been known to visit occasionally.