BAX meaning in Regional ?

Barnaul (Altay: Барнаул кала, Russian: Барнау́л, IPA: [bərnɐˈul]) is the largest city and administrative center of Altai Krai, Russia, located at the confluence of the Barnaulka and Ob Rivers in the West Siberian Plain. As of the 2010 Census, its population was 612,401, making it the 21st largest city in Russia and the 4th largest in the Siberian Federal District.

Located in the south of western Siberia on the left bank of the Ob River, Barnaul is a major transport, industrial, cultural, medical and educational hub of Siberia. Barnaul was founded by the wealthy Demidov family, who intended to develop the production of copper and silver, which continued after the factories were taken over by the Crown. Barnaul became a major center of silver production in Russia. Barnaul was granted city status in 1771.