| Unghia Mare River | |
| (Frumoasa River) | |
| River | |
| Countries | Romania |
|---|---|
| Counties | Prahova County |
| Source | |
| - location | Baiu Mountains, Mount Unghia Mare |
| - elevation | 1,841 m (6,040 ft) |
| - coordinates | |
| Mouth | Azuga |
| - elevation | 1,088 m (3,570 ft) |
| - coordinates | |
The Unghia Mare River or Frumoasa River is a tributary of the Azuga River in Romania.