アルダン川
Aldan (; ) is a gold-mining town and the administrative center of Aldansky District of the Sakha Republic, Russia, located in the Aldan Highlands, in the Aldan River basin, on the stream Orto-Sala near its mouth in the Seligdar River, about south of the republic's capital of Yakutsk. As of the 2010 Census, its population was 21,275.