(Chemin Marks) across tributary Riviere Gatineau SW of Gracefield, Gatineau County, QC. QC. PH105 S. 1.1 miles (1.8km) from jct with Rue St. Eugene in Gracefield, W. on Ch du Lac Cayamant 0.8 miles (1.3km), S. on Ch Marks 0.2 miles (0.3km) to the bridge. (N46 04.473 W76 04.662) Photos by Jack & June Schmidt 5-31-10.