The fortress of
Bikatunskaya (), or
Bikatunsky Ostrog (), was founded in 1708-1709: it was constructed near the confluence of Biya and Katun Rivers (hence the name) in 1709 by the order the Russian
Tsar Peter the Great signed in 1708. Yet, in 1710, after a three-day battle, the ostrog was destroyed by the
Dzungar people. The Bikatunskaya fortress was re-built at a new place ( up the Biya, on the right bank of the river) in 1718 and renamed
Biyskaya () in 1732. Gradually, Biysk lost its role as a military base, but became an important center of trade, and was granted town status in 1782. In 1797, the town was abolished, but in 1804 it was restored as an
uyezd town of
Tomsk Governorate and granted the coat of arms which is still in use. ==Administrative and municipal status==