Interestingly the Klamath people have an oral history of the eruption of Mount Mazama and formation of Crater Lake over 7000 years ago.

I wouldn't trust that one bit. Have you ever played telephone? 7000 years is a lot of generations, it's likely completely inaccurate.

That's incredibly interesting. Does it line up with the geographical record?

Just a few days ago there was a village in Canada discovered thanks to oral tradition. It has been dated thousands of years older than the pyramids