Udarnik, Sakha Republic
Udarnik is a rural locality, and one of three settlements in Bayagantaysky Rural Okrug of Tomponsky District in the Sakha Republic, Russia, in addition to Krest-Khaldzhan, the administrative center of the Rural Okrug and Ary-Tolon. It is located from Khandyga, the administrative center of the district and from Krest-Kaldzhan. Its population as of the 2002 Census was 159. It is named after the Russian word for a hard worker.
