I went back up to Crater Lake before dawn this morning. (Lots of pics and vids)

[csziggy]

14. It's way older than you might think!

I'd never heard of it so I looked it up:

This Tree Trunk Has Been Floating Upright For 120 Years - And No One Knows Why
BEC CREW
10 OCTOBER 2016

Crater Lake in Oregon is the deepest lake in the United States, and its water is so blue, you’d be forgiven for thinking someone slipped a few gallons of food colouring into it.

But its sheer size and brilliant blue water aren’t the only distinguishing features of Crater Lake - there’s a 9-metre-tall (30-foot) tree stump that’s been bobbing vertically in the lake since at least 1896, and it’s buoyant enough to support the weight of an entire person standing on top.

A ranger standing on the log, circa 1930. Credit: Wikimedia/Public domain

{SNIP}

Thought to be a hemlock trunk, the Old Man of the Lake has been floating in Crater Lake in southern Oregon’s Crater Lake National Park for at least the past 120 years, but carbon dating suggests that it is at least 450 years old.

More: https://www.sciencealert.com/this-tree-trunk-has-been-floating-upright-for-120-years-and-no-one-knows-why