North Branch Chicago River
Lake Forest, Illinois, United States
Moving water, 12 feet wide. within LCFPD Middlefork Savanna preserve
![](https://cdn.waterrangers.ca/assets/default-150x150-cd282e9606eb9f82711bac32876e2d0e601ded2e263f562808e560a6eda4e0ea.jpg)
Location created by
Julia Lunn
- Group: Winter Chloride Watchers
- Site ID: R0211618
- Lat: 42.2545818
- Lng: -87.8832006
- Waterbody Type: River
- Timezone: America/Chicago
Latest photos
No photos uploaded.
Observation tests summary
Air temperature
°C
23.9
Latest
6.5
Average
Chloride
ppm
33.0
Latest
145.1
Average