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| Data sets | Publications | Expeditions | Thesaurus |
Ottawa River  | |
|---|---|
| RT | Ontario |
| Quebec | |
| Ohio | |
| Lucas County Ohio | |
| Saint Lawrence River basin | |
| Wood County Ohio | |
| SN | River. Forms the border between Ontario and Quebec. Also in Lucas and Wood counties, N Ohio. Indexed with provinces OR Ohio and counties as applicable. Added to Thesaurus in 1989. |