Nelson Reservoir
| Reservoir Name | Nelson |
| Dam Name | Nelson Dike |
| Administration City | Montana |
| Country | United States |
| Year | 1914 |
| Dam Height | 6 |
| Dam Length | 584 |
| Area(Sqkm) | 14 |
| Area(Polygonal) | 14 |
| Capital Expenditure | 97.7 |
| Depth(M) | 7 |
| Avg Displacement Of Water | 1 |
| Catchment Area In Sqkm | 103 |
| Main Usage | Irrigation |
| Status | 3: Fair |
| Longitude | -107.524583 |
| Latitude | 48.532917 |
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