Beloretsk (byĕlərĕtskˈ) [key], city (1989 pop. 72,000), in Bashkortostan, W Siberian Russia, in the Urals and on the Belaya River. One of the oldest industrial cities of the Urals region, Beloretsk is a metallurgical center, with industries that produce steel wire and cables. The city has medical and pedagological institutes. Beloretsk was founded in 1762.