Kyudusun

Kyudusun is a river of the Oymyakon country and a tributary of the upper Indigirka. It rises in a lake on the northeastern slopes of the Suntar-Khayata Range and flows through a mountain basin before joining the larger river. The valley belongs to one of the coldest inhabited regions of northeastern Siberia, where a short summer follows a long and severe winter. Mountain waters connect this inland basin with the Indigirka's route to the Arctic.