 Route 172 | ||||
|---|---|---|---|---|
 MO 172 highlighted in red | ||||
| Route information | ||||
| Maintained by MoDOT | ||||
| Length | 8.810 mi[1] (14.178 km) | |||
| Major junctions | ||||
| West end |  US 67 in Mark Twain National Forest | |||
 Route W in Mark Twain National Forest | ||||
| East end | End of state maintenance in Lake Wappapello State Park | |||
| Location | ||||
| Country | United States | |||
| State | Missouri | |||
| Counties | Wayne | |||
| Highway system | ||||
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Route 172 is a state highway in the Mark Twain National Forest, specifically in Wayne County, Missouri. The route runs for 8.97 miles (14.44 km) eastward as a two-lane highway through dense forests. Route 172 begins at an intersection with U.S. Route 67 just south of the intersection nearby with Route 49. Route 172 has a mile-long concurrency midway with Supplemental Route W, where the Route 172 returns to its eastern terminus, Lake Wappapello State Park. The route does not pass any communities or municipalities on its stretch.