Definition that contains altai mountains
- irtish 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
- 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
- irtysh an Asian river that rises in the Altai Mountains in northern China and flows generally northwest to become a tributary of the Ob River
- irtish an Asian river that rises in the Altai Mountains in northern China and flows generally northwest to become a tributary of the Ob River