Uda (Уда́) is a river in the republic of Buryatia, Russia. It is a right tributary of the river Selenga, which it meets near the city Ulan-Ude. Length 467 km. The Buryat Republic (Russian: Респу́блика Буря́тия; Buryat: Буряад Республика) is a Russian Federation (a republic). ... The Russian Federation (Russian: Росси́йская Федера́ция, transliteration: Rossiyskaya Federatsiya or Rossijskaja Federacija), or Russia (Russian: Росси́я, transliteration: Rossiya or Rossija), is a country that stretches over a vast expanse of eastern Europe and northern Asia. ... A tributary (or affluent or confluent) is a contributory stream, a river that does not reach the sea, but joins another major river (a parent river), to which it contributes its waters, swelling its discharge. ... The Selengе or Selenga (Mongolian: Сэлэнгэ, Russian: Селенга́) is a river in Mongolia and Russia. ... Ulan-Ude (Ула́н-Удэ́) (pop. ...