In Canada name 3 rivers that are tributaries of the st Lawrence river?

Three tributaries of the St. Lawrence River in Canada are:

1. Ottawa River: The Ottawa River is a major tributary of the St. Lawrence River that flows through the provinces of Ontario and Quebec. It is approximately 1,271 kilometers long and drains a basin area of over 145,000 square kilometers. The Ottawa River joins the St. Lawrence River at the city of Montreal.

2. Saguenay River: The Saguenay River is a major tributary of the St. Lawrence River that flows through the province of Quebec. It is approximately 160 kilometers long and drains a basin area of over 85,000 square kilometers. The Saguenay River is known for its deep fjord-like valleys and spectacular scenery. It joins the St. Lawrence River at the town of Tadoussac.

3. St. Maurice River: The St. Maurice River is a tributary of the St. Lawrence River that flows through the province of Quebec. It is approximately 563 kilometers long and drains a basin area of over 40,000 square kilometers. The St. Maurice River joins the St. Lawrence River at the city of Trois-Rivières.