Illinois 152 is a short east-west route in southern Perry County, in southwestern Illinois. It runs west from Du Quoin to end at Illinois 13/Illinois 127. It kind of serves as a western extension of Illinois 14; I'm not sure why Illinois 14 didn't absorb this route.
The western end of Illinois 152 is at Illinois 13/127:
Illinois 152 has no other junctions after that, besides the eastern end in Du Quoin at US Route 51. This junction with US Route 51 and Illinois 152 is only a couple miles north of the western end of Illinois 14.