it at the same elevation as (Großer Müggelberg, cf. Müggelberge), and was the highest point in West Berlin. New measurements show that Teufelsberg is actually high, making it higher than Großer Müggelberg. In February 1955, a ski jump opened on the hill, designed by the ski jumper and architect Heini Klopfer. A larger ski jump opened March 4, 1962, offering space for 5,000 spectators. Ski jumping ceased in 1969, allowing the ski jumps to fall into decay. The jumps were removed in 1999. Teufelsberg has been a location for several recent movies and television programmes, such as The Gamblers, Berlin Station, Covert Affairs (second-season episode titled "Uberlin") and We Are the Night in which the finale takes place on Teufelsberg. As in the whole of Grunewald Forest, wild boar frequently roam the hill. Listening station: Field Station Berlin The US National Security Agency (NSA) built one of its largest listening stations atop the hill in 1963, supposedly as part of the global ECHELON intelligence gathering network. "The Hill", as it was known colloquially by the many American soldiers who worked there around the clock and who commuted there from their quarters in the American Sector, was located in the British Sector. In July 1961, mobile Allied listening units began operations on Teufelsberg, having surveyed various other locales throughout West Berlin in a search for the best vantage point for listening to Soviet, East German, and other Warsaw Pact nations’ military traffic. They found that operations from atop Teufelsberg offered a marked improvement in listening ability. This discovery eventually led to a large structure being built atop the hill, which would come to be run by the NSA (National Security Agency). Construction of a permanent facility was begun in October 1963. At the request of the US government, the ski lifts were removed because they allegedly disturbed the signals. The station continued to operate until the fall of East Germany and the Berlin Wall, but after that the station was closed and the equipment removed. The buildings and antenna radomes still remain in place. During the NSA operations some other curious things happened: It was noticed that during certain seasons the reception of radio signals was better than during the rest of the year. The 'culprit' was found after a while: it was the Ferris wheel of the annual German-American Volksfest Festival on the Hüttenweg in Zehlendorf. From then on, the