| Fort Saint Pierre National Historic Site | |
|---|---|
| Fort Saint Pierre | |
 | |
| Coordinates | 48°36′54″N 93°21′24″W / 48.61500°N 93.35667°W |
| Built | 1731 |
| Original use | Trading post |
| Website | Fort St. Pierre National Historic Site |
  Location of Fort Saint Pierre National Historic Site in Ontario | |
| Designated | 28 May 1934 |
Fort Saint Pierre on Rainy Lake was the first French fort built west of Lake Superior. It was the first of eight forts built during the elder Vérendrye's expansion of trade and exploration westward from the Great Lakes.