The Tunk Valley unit�s 1,399 acres are located about 12 miles northeast of Omak in the Tunk Valley of Okanogan County. Elevations vary from 1,800 feet to 3,200 feet. With gentle topography and a mostly north-facing aspect, it includes about two miles of Tunk Creek and its riparian trees and shrubs. It also has several springs and one man made pond. Most of the habitat is shrub steppe, with a small stand of timber on the steep north slope in the center of the property. A large flock of 64 sharp-tailed grouse were observed along Tunk Creek in the winter of 2003. The area also supports mule and white-tailed deer, ruffed grouse, California quail, gray partridge, hawks, owls, woodpeckers and other cavity-nesting birds, and many species of songbirds. Tunk Creek has rainbow and brook trout.