Across
- 5. Largest river in North America
- 8. Man-made waterways.
- 9. Major road hazards
- 10. Road that reached Illinois
- 11. Major town in upstate New York
Down
- 1. Early form of river transportation
- 2. First road built by the federal government
- 3. Longest Canal in the United States
- 4. Major North American river
- 6. New ships powered by hot air
- 7. River flowing past New York