| Answer | Crossword Clue |
|---|---|
| SOO | ... Locks (Great Lakes connectors) |
| SOO | ... Canals (Great Lakes connectors) |
| SOO | Great Lakes connectors, the ... Canals |
| SOO | Great Lakes' -- Locks |
| SOO | Great Lakes locks |
| SOO | The Great Lakes' ... Locks |
| SOO | ... Locks (Great Lakes canal) |
| SOO | ..... Locks (Great Lakes passage) |
| SOO | ... Locks (Great Lakes canals) |
| SOO | ... Locks (Great Lakes passage) |
