Chadan

 city, district center

Chadan (Russian: Чада́н; Tuvan: Чадаана, Çadaana) is a town and the administrative center of Dzun-Khemchiksky District in the Tuva Republic, Russia, located on the Chadan River (in the Yenisei's basin), 224 kilometers (139 mi) west of Kyzyl, the capital of the republic. As of the 2010 Census, its population was 9,035.
In 1873, at the confluence of Khondergey and Chadan Rivers, a Buddhist monastery called Aldee-Khuree was founded. This year is considered the founding year of Chadan. In 1923, the village by the monastery was known as Artadyt. In January 1929, when the Plenum Tuvan People's Revolutionary Party adopted an anti-religious decree, the Aldee-Khuree monastery was closed and destroyed, and the village was renamed Chadan. In May 1945, Chadan was granted town status and became the administrative center of Dzun-Khemchiksky District. Around this time, coal deposits were discovered nearby and with open-pit mining starting soon after.