[PAR] [TLE] Selenga River [SEP] The Selenga River (Selenge River, Mongolian: Сэлэнгэ мөрөн, "Selenge mörön"; Buryat: Сэлэнгэ гол, "Selenge gol", Сэлэнгэ мүрэн, "Selenge müren" ; Russian: Селенга́ ) is a major river in Mongolia and Buryatia, Russia.  Its source rivers are the Ider River and the Delgermörön river.  It flows into Lake Baikal and has a length of 992 km or 1024 km , according to other sources.  The Selenga River is the headwaters of the Yenisei-Angara River system.  Carrying 935 m3/s of water into Lake Baikal, it comprises almost half of the riverine inflow and forms a wide delta of 680 km2 , when it reaches the lake. [PAR] [TLE] Chikoy River [SEP] Chikoy (Russian: Чикой , Mongolian: Цѳх гол , Buryat: Сүхэ гол ) is a river in Zabaykalsky Krai and the Buryat Republic in Russia, which partially flows along the Russo-Mongolian border.  It is a right tributary of the Selenga River.  The length of the Chikoy is 769 km .  The area of its basin is 46200 km2 .  The river usually freezes over in late October or early November and stays icebound until April or early May.  Its largest tributary is the Menza River.
[PAR] [TLE] Selenga River [ SEP ] The Selenga River ( Selenge River , Mongolian : Сэлэнгэ мөрөн , " Selenge mörön " ; Buryat : Сэлэнгэ гол , " Selenge gol " , Сэлэнгэ мүрэн , " Selenge müren " ; Russian : Селенга́ ) is a major river in Mongolia and Buryatia , Russia . Its source rivers are the Ider River and the Delgermörön river . It flows into Lake Baikal and has a length of 992 km or 1024 km , according to other sources . The Selenga River is the headwaters of the Yenisei - Angara River system . Carrying 935 m3/s of water into Lake Baikal , it comprises almost half of the riverine inflow and forms a wide delta of 680 km2 , when it reaches the lake . [PAR] [TLE] Chikoy River [ SEP ] Chikoy ( Russian : Чикой , Mongolian : Цѳх гол , Buryat : Сүхэ гол ) is a river in Zabaykalsky Krai and the Buryat Republic in Russia , which partially flows along the Russo - Mongolian border . It is a right tributary of the Selenga River . The length of the Chikoy is 769 km . The area of its basin is 46200 km2 . The river usually freezes over in late October or early November and stays icebound until April or early May. Its largest tributary is the Menza River .
Chikoy River is a tributary of which major river that flows into Lake Baikal?
Chikoy River is a tributary of which major river that flows into Lake Baikal ?
Selenga River
Selenga River