Western State Hospital is a psychiatric hospital located at 9601 Steilacoom Boulevard SW in Lakewood, Washington. Administered by the Washington Department of Social and Health Services (DSHS), it is the largest psychiatric facility west of the Mississippi River, with 806 beds, and the second oldest state-owned enterprise, after the University of Washington. One of two state-owned adult psychiatric hospitals, the other being Eastern State Hospital in Medical Lake, the hospital currently treats patients using psychiatric medications, mental health counseling, group therapy, drug, psychiatric rehabilitation and behavior modification therapies. The hospital is divided into 4 specific acute treatment areas; PTRC Central and South for the treatment of civil and voluntarily committed adult patients, PTRC East for the treatment of older and geriatric patients, both civil and voluntary, the Center for Forensic Services that provides court-ordered evaluations and treatment for patients with legal charges and/or convictions, and the Child Study and Treatment Center, which provides treatment for children under the age of 18 years.