sentences:  Within the municipal district, the Town of Aldan is incorporated into Aldan Urban Settlement, the Town of Tommot and the Settlement of Bezymyanny are incorporated into Tommot Urban Settlement, the Settlements of Lebediny and Leninsky are incorporated into Leninsky Urban Settlement, the Settlement of Nizhny Kuranakh is incorporated into Nizhny Kuranakh Urban Settlement, and the three rural okrugs are incorporated into three rural settlements.The town of Aldan serves as the administrative center of both the administrative and municipal district.The economy of the district is based mostly on mining, although the production of building materials, wood processing, and food industry also have presence.