Illinois Route 172
IL 172 highlighted in red | ||||
| Route information | ||||
| Maintained by IDOT | ||||
| Length | 13.06 mi (21.02 km) | |||
| Existed | 1946–present | |||
| Major junctions | ||||
| South end | IL 92 in Yorktown | |||
| North end | IL 40 in Tampico | |||
| Location | ||||
| Country | United States | |||
| State | Illinois | |||
| Counties | Bureau, Whiteside | |||
| Highway system | ||||
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Illinois Route 172 is an inverted-L-shaped highway in northwestern Illinois, though it is marked as being a north–south highway on signage. It runs from Illinois Route 40 to Illinois Route 92 by way of Tampico. This is a distance of 13.06 miles (21.02 km). Illinois 172 is also a part of the Ronald Reagan Trail.