The oldest trees in the world are the Bristle cone pines atop the High Sierra mountains in the USA. One particular example known as the Methuselah tree was an incredible 5000 years old. I say was I don't know if it still survives I have a nasty feeling a scientist killed it in an effort to determine its age, thats progress for you. These snags are undoubtedly younger but are twisted and sculpted by the extreme conditions and tend to look more dead than alive.