| Answer | Crossword Clue |
|---|---|
| SOO | Huron-Superior locks |
| SOO | Locks between Huron and Superior |
| SOO | Huron-Superior canals |
| LAKE | Huron or Superior |
| SOO | Superior-Huron canals |
| LAKE | Superior or Huron |
| GREATERLAKE | Superior vis- -vis Huron? |
| SAULTSTEMARIE | From Huron to Superior. |
| SOO | -- Canals (Superior-Huron linkup) |
| MARYS | St. ...River (Superior-Huron link) |
| STMARYS | River from Superior to Huron |
| SOO | Canals between Huron and Superior |
| SCNLS | They connect Lakes Superior and Huron |
| STMARYS | River from Lake Superior to Lake Huron. |
| SOO | ... Canals (ships' connection between Lakes Superior and Huron) |
