Saganashkee Slough
| Saganashkee Slough | |
|---|---|
| Saganashkee Slough | |
| Location | Cook County, Illinois, United States | 
| Coordinates | 41°41′38″N 87°53′28″W / 41.694°N 87.891°W | 
| Type | Reservoir | 
| Basin countries | United States | 
| Surface area | 377 acres (153 ha) | 
| Average depth | 6.5 ft (2.0 m) | 
| Surface elevation | 591 ft (180 m) | 
Saganashkee Slough is a 377 acres (153 ha), manmade riparian lake that forms part of the valley of the Cal-Sag Channel. It is located in the Palos Forest Preserves of Cook County, Illinois, on wetland that was drained but was later reverted to a lake starting in 1948-1949 by the construction of dams and levees. Saganashkee Slough, like other segments of the Cal-Sag canal and valley system, drains into the Des Plaines River and ultimately into the Illinois River.