Anuy

The Anuy (река́ Ану́й) is a left tributary of the Ob originating in the Altai Mountains of Siberia, Russia. It is 327 km long, and has a drainage basin of 6930 km2.

The Chyorny Anuy and the smaller Bely Anuy join to form the Anuy. The Chyorny Anuy starts at an elevation of 1220 m at the southeastern end of the Anuy mountain range in the Altai Republic. Flowing in a northwestern direction, it enters Altai Krai after about 40 km. The two rivers join near Soloneshensky District.

The Anuy exits the Altai mountains at an elevation of 250 m and flows in a northeastern to eastern direction. Near the village of Anuyskoye, the river takes a northern direction and joins the Ob west of Biysk at an elevation of about 150 m.

The average flow at Staro-Tirishkino, about 10 km near the river's end, is about 36.1 m3/s with a minimum of 6.9 m3/s in February and a maximum of 123 m3/s in April.

The Anuy is frozen between November and April. It is not navigable.

The Denisova Cave is approximately 28 m above the right bank of the Anuy.