Greystone Park Psychiatric Hospital (also known as Greystone Psychiatric Park, Greystone Psychiatric Hospital, or simply Greystone and formerly known as the State Asylum for the Insane at Morristown, New Jersey State Hospital, Morris Plains, and Morris Plains State Hospital) referred to both the former psychiatric hospital and the historic building that it occupied in Morris Plains, New Jersey. Built in 1876, the facility was built to alleviate overcrowding at the state's only other "lunatic asylum" located in Trenton, New Jersey. Originally built to accommodate 350 people, the facility, having been expanded several times, reached a high of over 7700 patients resulting in unprecedented overcrowding conditions. In 2008, the facility was ordered to be closed as a result of deteriorating cond