Big Island 31D | |
|---|---|
| Big Island Indian Reserve No. 31D | |
  Big Island 31D | |
| Coordinates: 49°07′N94°38′W / 49.117°N 94.633°W | |
| Country |  Canada |
| Province |  Ontario |
| District | Rainy River |
| First Nation | Naongashiing |
| Area | |
| • Land | 3.70 km2 (1.43 sq mi) |
Big Island 31D is a First Nations reserve on Big Island in Lake of the Woods, northwestern Ontario, Canada. It is one of the reserves of the Anishnaabeg of Naongashiing.
