GSC copper bolt stamped 504-G, set horizontally in the west abutment wall of the CNR bridge that crosses the Soulange canal at Coteau-Landing, on the north side of the bridge support, in the third row of stones. The marker is located 3.80 m from a beacon on a telephone pole, 0.30 m from the northern end of the abutment, 1.50 m below the top of the abutment, 2.60 m from the southernmost rail and 1.70 m below it, 1.90 m from marker 692801 and 1.0 m below it.