Illinois Route 170
IL 170 highlighted in red | ||||
| Route information | ||||
| Maintained by IDOT | ||||
| Length | 25.00 mi (40.23 km) | |||
| Existed | 1946–present | |||
| Major junctions | ||||
| South end | IL 23 in Cornell | |||
| North end | US 6 in Seneca | |||
| Location | ||||
| Country | United States | |||
| State | Illinois | |||
| Counties | Livingston, LaSalle | |||
| Highway system | ||||
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Illinois Route 170 is a north–south state road in north-central Illinois. It runs from Illinois Route 23 well north of Pontiac to U.S. Route 6 in Seneca. This is a distance of 25.00 miles (40.23 km).