Blackwater Lake
| Dam Name | Blackwater Lake |
| River | Trib. Boy River |
| Administration City | Minnesota |
| Country | United States |
| Year | 1938 |
| Dam Height | 2 |
| Dam Length | 9 |
| Area(Sqkm) | 2.8 |
| Area(Polygonal) | 2.8 |
| Capital Expenditure | 19 |
| Depth(M) | 6.8 |
| Avg Displacement Of Water | 43 |
| Catchment Area In Sqkm | 20 |
| Main Usage | Other |
| Status | 4: Poor |
| Longitude | -94.31125 |
| Latitude | 46.91625 |
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