Crdoba, abbreviated as CBA, is a city located near the geographical center of Argentina, in the foothills of the Sierras Chicas mountains on the Suqua River, about 700 km west-northwest from Buenos Aires. It is the capital of Crdoba Province. Crdoba has been Argentina's second most important city since the end of the 16th century, and the second industrial center in the country, but retains many of its historical buildings dating from the colonial era.