Reşiţa (rĕˈshētsä) [key], Hung. Resiczabánya, city (1990 pop. 110,519), W Romania, in the Banat, in the western foothills of the Transylvanian Alps. It is a railroad terminus and a leading Romanian mining and industrial center. The production of iron and steel, engines, and metal goods are the leading industries. Coal and manganese are mined nearby. Reşiţa was known in Roman times as a mining center for precious metals. The modern city was founded in 1768, when the first foundry was established.