Roslyn Air National Guard Station Roslyn Air National Guard Station ( ADC ID : P - 3 ) is a closed United States Air Force station . It is located south of East Hills , New York on Long Island . It was closed in 2000 . History . World War II . During 1942 , the site was leased by the United States Army from Clarence Mackay for a headquarters station , initially for the I Interceptor Command , then the unit being re - designated to I Fighter Command , a component of First Air Force . The leased site was designated as " Subpost # 3 , Mitchel Army Airfield " . The 164th Army Air Forces Base Unit ( Fighter Control ) ( 164th AAFBU ) was assigned to the station on 10 April 1944 . The unit assumed the duties of the inactivated New York Fighter Wing . The command established an integrated command and control facility dedicated solely to air defense . The first military buildings consisted of nine buildings , including enlisted and officer quarters , mess hall , recreation building , store room , transmitter building , receiver station , and radio tower , and D / F homer station . Prior to April 1944 , access roads , 7 foot barbed wire perimeter fence , Fighter Control Center ( currently Building 6 ) , emergency power building , and power distribution system had been completed . At this time , the installation was called the Roslyn Filter Center . The mission of the 164th AAFBU was detection , interception , identification , and if necessary , destruction of all aircraft in the greater New York Metropolitan area . Through the use of radar and ground observers , the controllers of the Fighter Control Center would identify and classify all aircraft operating in the region . Unknown aircraft would be targeted for interception , and destruction if necessary , by interceptors operating out of nearby military airfields such as Mitchel Field , or by other active defense systems , such as anti - aircraft artillery ( AAA ) , barrage balloons , and smoke generated equipment situated around nearby defense plants and military installations . Orders to passive defensive systems such as blackouts and air raid warnings were also issued from the Fighter Control Center to the appropriate Civil Defense personnel . The Roslyn Filter Center operated until the end of the war and was then declared surplus to the needs of the Air Defense Command . Operating personnel were withdrawn on or about 14 January 1946 , and the 164th AAFBU was inactivated . Caretaker personnel were assigned to protect the property against pilfering and vandalism . Air Defense Command . The United States Air Force re - leased the established facility in 1951 and assigned it to Air Defense Command ( ADC ) . On 1 January 1951 ADC assigned the 503d Aircraft Control and Warning Group to Roslyn with the mission of developing a general radar surveillance system for the New York area . The 645th Aircraft Control and Warning Squadron was assigned to the station which established a Manual Control Center ( MCC ) at the facility . The unit received information from the 773d AC & W Squadron at Camp Hero , New York ( L - 10 ) ; the 646th AC & W Squadron at Twin Lights , New Jersey ( L - 12 ) , and the 770th AC & W Squadron at Palermo , New Jersey ( L - 13 ) . The 503d AC & W Group and 645th AC & W Squadron were inactivated 6 February 1952 , their mission being taken over by the 26th Air Division . In 1953 , the U . S . Government purchased the 50 acre facility for thee sum of $ 250 , 000 , the facility being designated as Roslyn Air Force Station ( AFS ) . The 26th AD commanded the Manual Air - Defense Control Center ( ADCC ) established by the predecessor ADC organizations coordinating air defense over an area that covered much of the industrial northeast , including New York City , Philadelphia , and Washington , D . C . . It employed off shore naval picket ships , fixed " Texas Tower " radar sites , airborne early warning units , and a civilian ground observer corps program . The 26th AD phased down in when the SAGE program was implemented at McGuire AFB , New Jersey , the control center being re - designated as the " Combat Alert Center ( Manual ) " . It was reassigned to Syracuse AFS , New York on 15 August 1958 . New York Air National Guard . With the reassignment of the ADC 26th Air Division , control of Roslyn AFS was transferred to the New York Air National Guard . The NYANG assigned a variety of non - flying units to the station , the 152nd Tactical Control Group , moving to the station in 1959 . It later was moved to Syracuse , New York . The 213th Engineering Squadron moved to the station in 1959 , with a mission install and maintain Radio , Central Office , and Wire communications Facilities under the Air Force Communication Service . Closure . BRAC 1995 closed Roslyn Air National Guard Station , with inactivation taking place in 2000 . In 2005 , the former Air Force station was torn down , being replaced by the Park at East Hills . A few former Air Force buildings remain in the woods to the east of the park , deteriorating and being covered by vegetation .