Alva (river)
| Alva | ||
 Alva valley near the municipality of Vila Cova de Alva |
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| Data | ||
| location | Central Portugal | |
| River system | Mondego | |
| Drain over | Mondego → Atlantic | |
| muzzle | above Penacova in the Mondego coordinates: 40 ° 17 ′ 46 ″ N , 8 ° 14 ′ 46 ″ W 40 ° 17 ′ 46 ″ N , 8 ° 14 ′ 46 ″ W
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| Reservoirs flowed through | Fronhas dam | |
The Alva ( Portuguese Rio Alva ) is a left (southern) tributary of the Mondego in the region of central Portugal . He is from the dam Fronhas (a reservoir Portuguese Albufeira da Barragem de Fronhas ) dammed. The Alva flows into the Mondego about three kilometers above the small town of Penacova .