| Fort Defiance | |
|---|---|
&sq=Google&lang=en&file=File:Adventure_Fort_Defiance.png) Fort Defiance with Columbia in background and Adventure in foreground. | |
| Constructed: | 1791-1792 |
| Location: | Meares Island, British Columbia, Canada |
| Continent: | North America |
| Abandoned: | 1792 |
Fort Defiance was a small outpost that the crew of the Columbia Rediviva built as winter quarters during 1791–1792 on Meares Island in present-day British Columbia, Canada. American merchant and maritime fur trader Captain Robert Gray was in command.