Petawawa River

The River at the town of Petawawa

The Petawawa River is a 187 km long river in eastern Ontario, Canada.

It rises in the Butt Lake, in the north of Algonquin Provincial Park, flows eastwards and ends at Petawawa in the Ottawa River. It drains an area of 4200 km ². It flows through a series of lakes, including the Cedar Lake and Radiant Lake. Its name comes from the language of the Algonquian word meaning " where one hears so much noise ," which refers to its many rapids. From the late 19th century until the 1960s, the river was used for timber floating. Because of its white waters of Petawawa is very popular with canoe and kayak enthusiasts.

A portion of the Petawawa River runs in the Ottawa - Bonnechere Graben, a 175 million year old grave breach.

Tributaries of the Petawawa Rivers are among others:

• Barron River
• Crow River
• Little Madawaska River
• Nipissing River flows into the Cedar Lake
• North River empties into the Radiant Lake