| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Valgomka | 322,000,000 | Syas River | 29,000 | 59.9937810000 | 32.8415610000 | Map | |||||
| Valya | 252,000,000 | Syas River | 37,000 | 59.8891666667 | 33.1252777778 | Map | |||||
| Volozhba River | 1,350,000,000 | Syas River | 81,000 | 59.5202777778 | 33.4602777778 | Map | |||||
| Dreglya | 181,000,000 | Syas River | 18,000 | 59.2086166667 | 33.5909416667 | Map | |||||
| Klinenka | Syas River | 30,000 | 59.5733333333 | 33.1461111111 | Map |