| Name | Merrickville Blockhouse - National Historic Site |
| Address | 279 St Lawrence St, Merrickville, ON K0G 1N0, Canada |
| Date | 0000-00-00 |
| Time | 00:00:00 |
| Category | Sights / Landmarks / Museums |
| Description | Built in 1832-33, the blockhouse is the largest and the most impressive of the four blockhouses built along the Rideau Canal for its defense and the second largest blockhouse surviving in Canada.... |
| Coordinates | 44.91652, -75.83733 |
| Web address | https://www.pc.gc.ca/en/lhn-nhs/on/rideau/decouvrir-discover/merrickvilleblockhouse |