Spring Grove Hospital Center, formerly known as Spring Grove State Hospital, is a psychiatric hospital located in the Baltimore, Maryland, suburb of Catonsville. Founded in 1797 as a general medical and psychiatric retreat, Spring Grove Mental Hospital is the second oldest continuously operating psychiatric hospital in the United States. Today, the hospital operates 425 beds and has approximately 800 admissions and discharges a year. Service lines include adult and adolescent acute psychiatric admissions, long term inpatient care, medical-psychiatric hospitalization, forensic evaluation services, inpatient psychiatric research, and assisted living services. The facility is owned and operated by the State of Maryland and is the location of the Maryland Psychiatric Research Center which is