Olyokminsky District  Olyokminsky District (; , "Ölüöxüme uluuha") is an administrative and municipal district (raion, or "ulus"), one of the thirty-four in the Sakha Republic, Russia. It is located in the southwest of the republic and borders with Verkhnevilyuysky District in the north, Gorny and Khangalassky Districts in the northeast, Aldansky District in the east, Neryungrinsky District in the southeast, Zabaykalsky Krai in the southwest, Irkutsk Oblast and Lensky District in the west, and with Suntarsky District in the northwest. The area of the district is . Its administrative center is the town of Olyokminsk. Population: 27,563 (2002 Census); The population of Olyokminsk accounts for 35.4% of the district's total population. The main rivers of the district include the Lena with its tributaries, the largest of which is the Olyokma. The Olyokma Nature Reserve is in the district. Average January temperature ranges from and average July temperature ranges from in the mountains to in the valleys. Average annual precipitation is . The district was established on January 9, 1930. As of the 2002 Census, the ethnic composition was as follows:  The economy of the district is based mostly on agriculture and mining. There are deposits of gold and construction materials in the district. The only deposit of charoite known in the world is located on the district's territory. Divisional source: *Administrative centers are shown in bold