Sharzhenga

a river in Vologda Oblast, RSFSR; a left tributary of the lug River of the Severnaia Dvina basin. The Sharzhenga is 183 km long and drains an area of 1,500 sq km. The river rises in the Severnye Uvaly. It is fed primarily by snow. High water occurs in April and May, and freshets occur in the summer and fall. The mean flow rate is approximately 14 cu m per sec. The Sharzhenga freezes over in late October or in November, and the ice breaks up in late April or early May.