The Pateros unit is located north of the town of Pateros in Okanogan County and includes 1,900 acres of WDFW and Bureau of Land Management land. Shrubsteppe habitat dominates the area with good stands of bitterbrush providing important mule deer winter browse. Several draws vegetated with aspen and other riparian species are distributed throughout the area. The area is a critical mule deer wintering area and supports a diversity of other wildlife species including Neotropical migrants, raptors, white-tailed deer, chukar, grey partridge, blue grouse and California quail.