The city of raion subordination, raion centre (Selenga raion).
Was founded: in 1939, incorporated from 1953.
Coordinates: 51-17 d.n., 106-30 d.e. The city is situated in Transbaikalia, on Selenga middle mountains, in Gusinoozersk trough, on north western lakeside of Gusinoe lake.
Zone time: +5 from Moscow one.
Population: 11,6 thous. (1959); 29,7 thous. (1989); 32,2 thous. (1998).
Renamings: Shakhty (1939-1953).

Economics: Coal-mining (9/10 of coal mined in Buryatia is come from Gusinoozersk mines). Radioplant, clothing factory, enterprises of food industry, manufacture of building materials. Gusinoozersk state raion electric power station.

Architecture and remarkables: There is a lamasery (datsan) on south western lakeside of Gusinoe lake. It was founded in 1741. Now it is a vast with regular planning complex of temples and lama dwelling-houses with a settlement around it.

History:
It was founded in 1939 as Shakhty settlement owing to mining of bovey coalfield. In 1953 it was transformed to the city and named Gusinoozersk by the name of Gusinoe lake on lakeside of that it's situated. The name of the lake connects that in the past it was a favourite place for nidification of geese