FWIW I believe you're talking about Mammoths, not Mastodons. Similar but not same animal. Mastodons are believed to have gone totally extinct around 10,000 years ago.
There's so much evidence of human hunting of Mastodons, and the timelines are co-related so highly, it's hard to believe we weren't involved heavily in their extinction even if there were other (climate/habitat) related factors.
There's so much evidence of human hunting of Mastodons, and the timelines are co-related so highly, it's hard to believe we weren't involved heavily in their extinction even if there were other (climate/habitat) related factors.