Canadian citizenship test practice question · Symbols and regions
Which is the longest river system in Canada?
Answer options
- The St. Lawrence River
- The Fraser River
- The Saskatchewan River
- The Mackenzie RiverCorrect
Answer: The Mackenzie River
The Mackenzie River system is about 4,200 km long. It is the second-longest in North America, after the Mississippi, and flows north to the Arctic Ocean.
Checked November 7, 2026