| Clue | Source | Date |
|---|---|---|
| It's formed in Pittsburgh | New York Times | 23 Aug 2025 |
| It flows from Pittsburgh to Cairo | Wall Street Journal | 25 Jun 2024 |
| Indiana-Kentucky border | ||
| Geographic feature that defines the Indiana-Kentucky border | ||
| Southern border of the Northwest Territory | ||
| It's just west of Wheeling | ||
| It ends at Cairo | ||
| Kentucky's northern border | ||
| Belle of Louisville's beat | ||
| Mississippi tributary | ||
| Wheeling's waterfront. |