Ruth Lake Reservoir
| Reservoir Name | Ruth Lake |
| Dam Name | Robert W. Matthews |
| River | Mad River |
| Administration City | California |
| Country | United States |
| Year | 1962 |
| Dam Height | 46 |
| Dam Length | 192 |
| Area(Sqkm) | 4.3 |
| Area(Polygonal) | 4.3 |
| Capital Expenditure | 63.9 |
| Depth(M) | 14.9 |
| Avg Displacement Of Water | 7896 |
| Catchment Area In Sqkm | 315 |
| Main Usage | Recreation |
| Status | 2: Good |
| Longitude | -123.432917 |
| Latitude | 40.367917 |
List all Dams and Reservoirs