What is a watershed?

A watershed is an area of land that drains into a given river, lake or other water body. Unlike municipal boundaries, watershed boundaries are defined by nature, and therefore watersheds often overlap a number of municipal jurisdictions.

Within the Lower Des Plaines River watershed are a number of subwatersheds encompassing the creeks and tributaries that flow into the Des Plaines River.
We have pages for some of the Lower Des Plaines River subwatersheds on this website:

Hickory Creek
Long Run Creek
Salt Creek

Subbasins/Subwatersheds of the Des Plaines Watershed:
Subbasins Map