The Salda is a river in Sverdlovsk Oblast, Russia. It is a tributary of the Tagil. The Salda has its sources in the Ural Mountains. It is 122 kilometres long, with a drainage basin of 1,770 square kilometres. The average discharge is 7.2 cubic metres per second about 4 kilometres upstream of its mouth. The Salda freezes over in late October or early November…The Salda is a river in Sverdlovsk Oblast, Russia. It is a tributary of the Tagil. The Salda has its sources in the Ural Mountains. It is 122 kilometres long, with a drainage basin of 1,770 square kilometres. The average discharge is 7.2 cubic metres per second about 4 kilometres upstream of its mouth. The Salda freezes over in late October or early November, and stays frozen until the spring thaw in April.