Kuydusun

Kuydusun (Куйдусун; Куйдуһун, Kuyduhun) is a rural locality (a selo) in Borogonsky 2-y Rural Okrug of Oymyakonsky District in the Sakha Republic, Russia, located 567 km from Ust-Nera, the administrative center of the district, and 3 km from Tomtor, the administrative center of the rural okrug. Its population as of the 2002 Census was 139.

Geography
The village is located on the left bank of the Kuydusun, a tributary of the Indigirka. There is a bridge over the river east of the village.