A fire on the mountainside in 1997 damaged one of the gamma-ray telescopes, but subsequent fires in September 2005 and August 2009 did no serious damage to buildings or telescopes.
1997年山坡上的火災燒毀了其中一個伽馬射線望遠鏡，但2005年9月的另一次火災並未使任何建築或望遠鏡損壞。