There are ATMs all over Córdoba City (identifiable by a sign saying link or banelco), and in most, but not all, other towns. Although hotels in the towns outside Córdoba may accept U.S. dollars, it's safer to change any currency in the city: Citibank is a good bet. As in the rest of Argentina, banking hours are 10 AM to 3 PM weekdays. Note that neither La Cumbrecita nor Ascochinga has banks.