Wiar

Wiar or Vihor (Вігор) is a left tributary of the San River in southeastern Poland and Ukraine. It flows for 70.4 kilometres, and joins the San near Przemyśl.

Tributaries

 * Left
 * Zalissia River


 * Right
 * Bibiska
 * Mala Vyrva
 * Bukhta
 * Vyrva
 * Arlamivka (left)
 * Chyzhka (right)