Cottage Grove Lake Reservoir
| Reservoir Name | Cottage Grove Lake |
| Dam Name | Cottage Grove |
| River | Coast Fork of Willamette River |
| Administration City | Oregon |
| Country | United States |
| Year | 1942 |
| Dam Height | 31 |
| Dam Length | 643 |
| Area(Sqkm) | 2.5 |
| Area(Polygonal) | 2.5 |
| Capital Expenditure | 61.7 |
| Depth(M) | 24.7 |
| Avg Displacement Of Water | 7553 |
| Catchment Area In Sqkm | 272 |
| Main Usage | Flood control |
| Status | 2: Good |
| Longitude | -123.057917 |
| Latitude | 43.715417 |
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