Illinois Route 34, not to be confused with US Route 34, runs northwest-southeast in southern Illinois, connecting Benton, Harrisburg, and Rosiclare. It starts along the backbone of southernmost Illinois at Benton, and runs southeast to end in Rosiclare, a town on the Ohio River near the southeastern corner of the state. It's useful for trying to reach Garden of the Gods Recreation Area, a unit of the Shawnee National Forest that is my favorite hiking spot in the entire state.
Illinois 34 begins at the central town squarerotary in Benton, Illinois, which also carries Illinois Routes 37 and 14 through town:
Illinois 34 heads easterly and southeasterly, meeting the eastern end of Illinois 149 at Thompsonville:
After passing through Galatia and Raleigh, Illinois 34 heads south into Harrisburg, where it joins Illinois 13 east: