Iron Heights Prison

Iron Heights Penitentiary is a prison located near Keystone City. It was first mentioned in the episode "An Innocent Man" when Peter Declan is held there. It was also mentioned and seen in the episode "Damaged", when Quentin Lance interrogates Oliver about ever entering there during a polygraph test; Oliver also helped Laurel escape there as well. In "Betrayal", it was the prison that once held Cyrus Vanch.

Inmates

 * Peter Declan
 * Cyrus Vanch  (formerly; unknown where currently held)