Ust-Olenyok

Ust-Olenyok (Усть-Оленёк; Уус Өлөөн / Ыстааннаах, Uus Ölöön / Istaannaax) is a rural locality (a selo), the only inhabited locality, and the administrative center of Ystannakhsky Rural Okrug of Bulunsky District in the Sakha Republic, Russia, located 365 km from Tiksi, the administrative center of the district. Its population as of the 2010 Census was 27, down from 52 recorded during the 2002 Census.

Geography
The settlement is located on the slope of a low hill, by the right bank of the mouth of the Olenyok River. The confluence of the Buolkalakh is located about 9 km upstream on the facing bank.

History
The first settlement was a wintering hut built in 1633 near the modern village. It served as the administrative center of the desolate area and it was used by Arctic expeditions in different occasions in history.

Climate
Ust-Olenyok has a tundra climate (ET) with short, cool summers and long, severely cold winters. On June 30, 2020, the temperature soared to 93.7 °F (34.3 °C) which may be the farthest north above 90 °F (32.2 °C) recorded above the 72 °N parallel. The following morning the temperature only dropped to 72.7 °F (22.6 °C).