(a town of) three mountains) is a closed town in Chelyabinsk Oblast, Russia, located in the western part of the oblast 200 kilometers (120 mi) from Chelyabinsk.

[5] On January 24, 1952, the Council of Ministers of the USSR issued decree No.

342—135сс/оп to build Plant #933 (Instrument Factory) for the production of atomic bombs.

[citation needed] Konstantin Volodin headed the new plant.

[1] The town is closed because a plant producing nuclear weapons is located there.