Blue Mountain Lake Reservoir
| Reservoir Name | Blue Mountain Lake |
| Dam Name | Blue Mountain |
| River | Petit Jean |
| Administration City | Arkansas |
| Country | United States |
| Year | 1947 |
| Dam Height | 35 |
| Dam Length | 853 |
| Area(Sqkm) | 11.3 |
| Area(Polygonal) | 11.3 |
| Capital Expenditure | 318.2 |
| Depth(M) | 28.2 |
| Avg Displacement Of Water | 12773 |
| Catchment Area In Sqkm | 1255 |
| Main Usage | Flood control |
| Status | 2: Good |
| Longitude | -93.65375 |
| Latitude | 35.10375 |
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