In his 1902 geology of Oregon’s Crater Lake, Joseph Diller mentioned that he’d seen a great stump bobbing vertically in the lake six years earlier, in 1896.

It’s still there. Apparently the lake is so cold that it’s preserved the 30-foot stump for more than a century. And the “old man” is pretty spry: In 1938, when the sketch above was made, the log wandered more than 62 miles in one three-month period.