Geo (Gio) Rutherford

It's 25 million years old.

Just so you know, that's got nothing on the oldest river in the world, which is in Australia, which is the Finke River, which is 400 million years old.

Anyway, Lake Baikal, though, is the oldest lake in the world.

And it's also the deepest lake.

So it's over a mile deep.

So it's 5,387 feet deep.

And feel free to fact check me on that because I know it's right.

That's correct.

It is the deepest lake.

And just for comparison, so we were just talking about Crater Lake.

Crater Lake is something like 1,900 feet deep.

So it's like pretty deep, but it's not over a mile deep.

So 5,387 feet deep is really deep.

And because of that, you know, I told you that rivers usually kill lakes because they bring sediment in.

So there's over 300 rivers that are carrying sediment into Lake Baikal.

But because it's a rift lake where the rift is like being pulled apart on the Baikal rift zone,

All of that sediment is just disappearing into the rift underneath the surface.

So even though it's over a mile deep, it's even deeper than that.

If you go to like the bottom of the rift where all that sediment has been building up.

So it's like over 20,000 feet underneath the surface where that sediment has been building up.