 These are about long and start from an elevation of .First a mountain stream, the river later flows along with the river Kukhtuy in a wide valley between Yudoma and Kukhtuy Ranges to join the Kukhtuy to form the harbor of Okhotsk, a natural harbour of the Sea of Okhotsk formed by a sand spit.In 1810 the ice-choked river cut a new mouth through the spit at Novoye Ustye.