The Ottawa River is a major waterway in Canada, flowing for about 1,271 kilometers. It originates from the Ottawa Valley in the province of Quebec and eventually joins the Saint Lawrence River near Montreal. The river serves as a natural border between Ontario and Quebec and is an important resource for both provinces. The river is known for its recreational activities, including canoeing, kayaking, and fishing. It also has historical significance, having been a vital transportation route for Indigenous peoples and early European settlers. Today, the Ottawa River is a popular destination for outdoor enthusiasts and nature lovers.