[Gravityloss]

That also has made me wonder. If these are common but not generally mapped or surveyed, then it'd be likely this is not oldest etc...

[peterashford]

Yeah, I've noticed over the years a lot of articles about oldest, tallest, <maximum other dimension> trees and they're always in the US. Strikes me that there's a likely bias there - the biggest results occur where you're doing the most looking