Rio vs Pervouralsk

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Pervouralsk (Russian: Первоура́льск, lit. the first in the Urals) is a city in Sverdlovsk Oblast, Russia, located on the Chusovaya River (Kama's tributary) 39 kilometers (24 mi) west of Yekaterinburg, the administrative center of the oblast.

Population: 124,528 (2010 Census); 132,277 (2002 Census); 142,193 (1989 Census); 122,000 (1974); 90,000 (1959); 44,000 (1939). It was previously known as Vasilyevsko-Shaytansky (until 1920).

Source: Wikipedia