Berchtesgaden: 359 Lancasters and 16 Mosquitos of Nos 1, 5 and 8 Groups. 2 Lancasters lost. This raid was against Hitler's 'Eagle's Nest' chalet and the local SS guard barracks. Among the force were 16 Lancasters of No 617 Squadron dropping their last Tallboys. 8 Oboe Mosquitos were also among the bombing force, to help with the marking, but mountains intervened between one of the ground stations transmitting the Oboe signals and the Mosquitos could not operate even though they were flying at 39,000 ft! There was some mist and the presence of snow on the ground also made it difficult to identify targets, but the bombing appeared to be accurate and effective. No other details are available.