Little Vermilion River (Illinois River tributary)
| Little Vermillion River | |
|---|---|
| Location | |
| Country | United States of America | 
| States | Illinois | 
| Cities | Mendota, Troy Grove, La Salle | 
| Physical characteristics | |
| Source | |
| • location | Mendota Township, LaSalle County, Illinois | 
| • coordinates | 41°36′46″N 89°05′44″W / 41.6128095°N 89.0956426°W | 
| • elevation | 912 ft (278 m) | 
| Mouth | |
 • location  | Confluence with the Illinois River, LaSalle, Illinois | 
 • coordinates  | 41°19′29″N 89°04′53″W / 41.3247568°N 89.0814716°W | 
 • elevation  | 447 ft (136 m) | 
| Length | 34.7 mi (55.8 km) | 
| Basin size | 80,420 acres (32,540 ha) | 
| Basin features | |
| Progression | Little Vermilion River → Illinois River → Mississippi River → Gulf of Mexico | 
| Landmarks | Mitchell's Grove Nature Preserve | 
| Population | 14600 | 
| Tributaries | |
| • left | Tomahawk Creek | 
| • right | Mendota Creek | 
| GNIS ID | 412427 | 
The Little Vermilion River is a 34.7-mile-long (55.8 km) tributary of the Illinois River, which it joins near LaSalle, Illinois, opposite the north-flowing Vermilion River. There is another "Little Vermilion River" in Illinois which is a tributary of the Wabash River.