an Asian river that rises in the Altai Mountains in northern China and flows generally northwest to become a tributary of the Ob River
[ Syn: irtish , irtish river , irtysh , irtysh river ]
an Asian river that rises in the Altai Mountains in northern China and flows generally northwest to become a tributary of the Ob River
[ Syn: irtish , irtish river , irtysh , irtysh river ]