Baykalsk is a town in Slyudyansky District of Irkutsk Oblast, Russia, located 35 kilometers from Slyudyanka, the administrative center of t…Baykalsk is a town in Slyudyansky District of Irkutsk Oblast, Russia, located 35 kilometers from Slyudyanka, the administrative center of the district. Population: 13,583 ; 15,727 ; 16,406. Baykalsk was founded in 1961 concomitant with the building of a paper mill there, called Baykalsk Paper and Pulp Mills. In 1966 the mill became operational, and the settlement received "city" status. At its peak, the mill employed about 3,500 people.