Location: A-73 and Boul. Laurier, Quebec Just after the A-540 interchange we’ll approach R-136. Location: A-73 and Boul. Champlain, Quebec Exit for R-136. Follow A-73 south to A-20.  S to QC-A20, N to QC-A40/QC-A440  E to QC-A440, W to QC-175  N to QC-A40  S to QC-136, N to QC-A740