What rivers flow backwards?

Related questions

1. What are the oldest rivers in the world?
2. What causes a river to flow backwards?
3. What rivers flow south?
4. What is the slowest river in the world?
5. Is River flows in you a classical music?
6. How fast do rivers flow?
7. Do any rivers flow north?
8. What are the only two rivers in the world that flow north?
9. Is there a river that flows uphill?
10. Is there a waterfall that flows up?

Tags

1. #backwards
2. #changed
3. #maphead
4. #actually
5. #chicago
6. #north
7. #flows
8. #jennings
9. #canal
10. #river
11. #south
12. #explores