| Sinyaya Yakut: Сиинэ | |
| Pushpin Map: | Russia Sakha Republic |
| Pushpin Map Caption: | Location in the Sakha Republic, Russia |
| Source1 Coordinates: | 62.2544°N 121.6558°W |
| Source1 Elevation: | 278m (912feet) |
| Mouth Coordinates: | 61.1147°N 126.9306°W |
| Subdivision Type1: | Country |
| Length: | 597km (371miles) |
| Discharge1 Avg: | 42m3/s |
| Basin Size: | 30900km2 |
The Sinyaya (Russian: Синяя; Yakut: Сиинэ, Siine) is a river in the Sakha Republic, Russia. It is a left tributary of the Lena. It is long, and has a drainage basin of .
The river begins in the Tampa-Ottoowo, a small lake located in the Lena Plateau at an elevation of 278m (912feet). It flows roughly southeastwards and there are about 3,300 lakes in its basin. In its lower course the river is flanked by picturesque rock formations, the Sinyaya Pillars. The Sinyaya meets the left bank of the Lena near Sinsk, 150km (90miles) upstream from Yakutsk and 1716km (1,066miles) from the Lena's mouth.[1]
The Sinyaya freezes between October and May. From the end of May to June it flows at a high level owing to the melting of snow and the flow recedes in the summer. The area of the river basin is largely uninhabited. The river flows across three districts, Verkhnevilyuy, Gorny and Khangalassky.[2]
The main tributaries of the Sinyaya are the 175km (109miles) long Khangdaryma, the 90km (60miles) long Appaya and the 240km (150miles) long Chyna on the right and the 195km (121miles) long Matta, the 98km (61miles) long Mekele, the 181km (112miles) long Chyra and the 152km (94miles) long Nuoraldyma on the left.[3]
