Upper South Dam
| Dam Name | Upper South Dam |
| River | Thunder Bay |
| Administration City | Michigan |
| Country | United States |
| Year | 1930 |
| Dam Height | 6 |
| Dam Length | 107 |
| Area(Sqkm) | 28.6 |
| Area(Polygonal) | 28.6 |
| Capital Expenditure | 49.5 |
| Depth(M) | 1.7 |
| Avg Displacement Of Water | 2823 |
| Catchment Area In Sqkm | 432 |
| Main Usage | Hydroelectricity |
| Status | 2: Good |
| Longitude | -83.792083 |
| Latitude | 45.022917 |
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