The Ulakhan-Chistay Range is the highest subrange of the Chersky Range system. It displays a clear Alpine relief and extends from NW to SE for about south of the Moma Range. It is parallel to the latter and separated from it by a wide intermontane basin, where the Ulakhan-Chistay River and the Moma River flow from the southeast and join the Indigirka. From the southwest the range is bound by the Erikit River, a left tributary of the Moma, and the Nera Plateau, beyond which rises the Tas-Kystabyt, also known as (Sarychev Range).