Sysola

a river in the Komi ASSR, with its upper course in Kirov Oblast, RSFSR; a left tributary of the Vychegda River. The Sysola is 487 km long and drains an area of 17,200 sq km. It rises in the Severnye Uvaly. It is fed predominantly by snow. High water lasts from the second half of April to mid-June. The mean flow rate 318 km from the mouth is about 33 cu m per sec. The Sysola freezes in late October or in November, and the ice breaks up in late April or early May. The river is used for floating timber; the lower Sysola is navigable. The city of Syktyvkar is located near the mouth of the Sysola.