Ust-Nera
Ust-Nera lies at the mouth of the Nera, where it enters the Indigirka from the right. Formed by the meeting of the Delyankir and Khudzhakh, the Nera drains the mountain country to the east. The Indigirka then cuts north through the ranges of northeastern Siberia on its long journey to the Arctic sea. The confluence lies within a region of exceptionally cold winters and rugged valleys.