Water shed map of the Great Lakes

Hydrologicly they are one, two lobed lake. But for cultural and commercial reasons they function more as two separate lakes. Similar to how the Adriatic and Aegean Sea are the same body of water as the Mediterranean.

They’re the puddles left behind after the glaciers melted at the end of the ice age. “The time of rushing waters.”

A bit of both in my non-expert but local understanding.

Except the tickly thing is a fighter jet. It's like those weird mobile games where the women are Jets except in reverse.

Yo momma.

Don't call her that.

Something something sperm whale

Blue and wet.

More like one of those vibrators with the tickley things at the base of the shaft.

These damn Canadians will not get away with their Lake Michigan erasure!!!

Caaaan ya find one similar for the Chesapeake Bay?

What tease! This great map begs for my close scrutiny. Alas! It will not bear it.

Edit: Here is a decent hi res map of the watershed. Boy, do I want to read every detail of that map you shared, OP. I'm going down the rabbit-hole!

Edit2: Another mid/low res map of the basin, but its awfully MS-Paint.

Edit3: found this digital version, but no better, really:


EditFinal: Here's a depth and elevation profile that I found that's clear and fairly detailed. I am too busy today to get further sucked in, but I could spend the rest of my day staring at these maps...


That's a surprisingly small watershed for such large lakes. Does it rain a lot or is it just accumulated over a very long time?

Fun Map Facts!

Lake Michigan resembles a penis.

Honestly, for how much fresh water they hold, I'm surprised how small their watershed is.

Awesome map!

But! Should Huron-Michigan count as one lake, or two, or three?