What is "yekyundyu"

Yekyundyu is a rural locality (a selo), the only inhabited locality, and the administrative center of Yekyundinsky Rural Okrug of Vilyuysky District in the Sakha Republic, Russia, located from Vilyuysk, the administrative center of the district. Its population as of the 2010 Census was 321, down from 326 as recorded during the 2002 Census.