Related Clues:
- Mars feature
- Big engineering project
- Toll site
- Gondola's place
- Artificial waterway
- Érié, e.g.
- Lock location
- The Seneca Chief was the first vessel to travel its entire length
- Word with ear or Erie
- 6-Across sighting
- Word with Erie or root
- Setting of some locks
- Mars sighting
- Panama, for one
- Panama sight