Valley vs Barnaul

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A valley is an elongated low area often running between hills or mountains which will typically contain a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams over a very long period of time. Some valleys are formed through erosion by glacial ice. These glaciers may remain present in valleys in high mountain or polar areas. At lower latitudes and latitudes, these glacially-formed valleys may have been created or enlarged during ice ages but now be ice-free and occupied by streams or rivers.

In desert areas, valleys may be entirely dry or carry a watercourse only rarely. In areas of limestone bedrock, dry valleys may also result from drainage taking place underground rather than at the surface. Rift valleys arise principally from earth movements, rather than erosion. Many different types of valley are described by geographers, using terms that may be global in use or else applied only locally.

Source: Wikipedia

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Barnaul (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.

Source: Wikipedia