The 418-acre Spears unit south of Randle is managed for black-tailed deer, dabbling ducks, emergent wetland, forested wetland, riparian forest and riparian shrub habitat. A large pond was created by the installation of a dike to retain water for mill operations prior to WDFW management. Two creeks flow through the unit and converge near the western boundary before draining into the Cowlitz River. Siler Creek, which flows along the southeastern boundary of the unit, is diked to keep water out of adjacent agricultural fields.