The Soviet Irkutsk shipyard according to a CIA report dated September 1967

An item reported the Soviet Irkutsk shipyard with as geographic coordinates 52.17.45 north and 104.16.05 east located near the centre of Irkutsk, Siberia on the west bank of the Angara. The shipyard possessed a side-haul marine railway, 2 side-launch slipways, 1 quay, 1 shop and 17 support buildings.

Source
The report was published on www.archive.org, document number CIA-RDP78T04759A007300010035-9