The river rises at Lac des Outaouais, north of the Laurentian Mountains of central Quebec, and flows west to Lake Timiskaming. … See more

As it does to this day, the river played a vital role in life of the Algonquin people, who lived throughout its watershed at contact. The river is called Kichisìpi, meaning "Great … See more

Numerous non-contiguous areas of the Ottawa River and its shores are protected in a variety of provincial parks, conservation areas, … See more

• Ottawa-Gatineau Watershed Atlas (OGWA)
• Ottawa River Regulation Planning Board
• Ottawa Riverkeeper
• The Ottawa River See more

The Ottawa River lies in the Ottawa-Bonnechere Graben, which is a Mesozoic rift valley that formed 175 million years ago. Much of the river flows through the Canadian Shield, … See more

A pulp and paper mill (at Témiscaming) and several hydroelectric dams have been constructed on the river. In 1950, the dam at Rapides-des-Joachims was built, forming Holden Lake … See more

• Ontario portal
• Lac Deschênes
• List of Ontario rivers
• List of crossings of the Ottawa River
• List of islands of Ontario#Ottawa River See more