Its western terminus is at the intersection of U.S. Route 69 (US-69), US-160 and US-400 south of Pittsburg and its eastern terminus is a continuation as Missouri Route 171 at the Missouri state line near Opolis.

[3] From this intersection, the highway heads due east to Opolis.

[3] The highway begins to curve to the south just before crossing the state line and becoming Route 171 at the Missouri border.

The Kansas Department of Transportation (KDOT) tracks the traffic levels on its highways, and in 2019, they determined that on average the traffic varied from 7,180 vehicles per day near the western terminus to 7,650 vehicles per day near the eastern terminus.

[6] The first four miles (6.4 km) of the route is paved with composite pavement, while the remaining 0.89 miles (1.43 km) is paved with full design bituminous pavement.