Miass (Russian: Миа́сс) is a city in Chelyabinsk Oblast, Russia, located 96 kilometers (60 mi) west of Chelyabinsk, on the eastern slope of the southern Urals, on the bank of the Miass River. Population: 151,812 (2010 Census preliminary results); 158,420 (2002 Census); 167,839 (1989 Census).