How old do you think he was? Do fauns live way longer then humans? It says it was a 100 year winter but he says:
He had wonderful tales to tell of life in the forest. He told about the midnight dances and how the Nymphs who lived int eh wells and the Dryads who lived int eh trees came out to dance with the Fauns; about long hunting parties after the milk-white Stag who could give you wishes if you caught him; about feasting and treasure-seeking with the wild Red Dwarfs in deep mines and caverns fat beneath the forest floor; and then about summer when the woods were green and old Silenus on his fat donkey would come to visit them, and sometimes Bacchus himself, and then the streams would run with wine instead of water and the whole forest would give itself up to jollification for weeks on end. "Not that is isnt always winter now," he added gloomily.
-LWW