Map of the Week 115-The Oak Park Continental Divide

Continental Divides usually bring up images of snowy mountain peaks but sometimes the mountains look like this:


Yes the suburban folks of Oak Park, Chicagoland, Illinois have their own continental divide and they're proud of it! They even have a web page to showcase it. The map below is proof for skeptics - stand at the corner of Division and Elmwood with a cup of water and watch some of it flow to the Gulf of Mexico while the rest goes to the Atlantic via the St. Lawrence Seaway.

<- This is a detailed map showing the approximate line of the divide. My guess is that the storm drainage system adds a layer of complication, making the map approximate at best.
The map above can be further subdivided - if you do this enough times you will eventually find your own local continental divide that you can brag about!