- The river is about 275 km (171 mi) long, and flows from Algonquin Park in Ontario, southward into the Ottawa River at the town of Pembroke.
- The Madawaska River is a popular destination for canoeing, kayaking, and fishing, and is also known for its scenic beauty.
- The river was first explored by French explorers in the 17th century, and was later used by fur traders and loggers.
- Today, the river is a popular destination for tourists and cottagers, and is also home to several First Nations communities.
