Ygyatta

The Ygyatta (Ыгыатта, ; Ыгыатта, Igıatta) is a river in Sakha, Russia. It is a left tributary of the Vilyuy. The Ygyatta is 601 km long, and its basin covers about 11200 km2. The depth of the river at its mouth is near 10 m. It rises on the Vilyuy Plateau in the west of Sakha and is fed by rain and snowmelt.

The river and its banks are rich with gems: emeralds, rubies, sards, aquamarines, and others.

There are goldfields along the river.

The basin of the Ygyatta is among the least populated places within Russia.