Altayxa

Altayxa lies near the upper Uyandina and the valley of the Buor-Yuryakh. The Uyandina is formed by rivers rising near the Selennyakh and Polousny ranges, then turns east across the Aby Lowland to join the Indigirka. Its right-bank tributary, the Buor-Yuryakh, flows down from the Moma Range.