What was the range of elevation for the water route taken by cartier from quebec to montreal?

The water route taken by Jacques Cartier from Quebec to Montreal primarily follows the St. Lawrence River, which has a relatively consistent elevation. The elevation of the St. Lawrence River in this section ranges from approximately 0 meters at sea level in Quebec to about 40 meters at Montreal. This route involves navigating through the river's natural topography, including rapids and shallow areas, but overall maintains a gentle gradient.