Cerro de Oro
Cerro de Oro is a small town and municipality in Junín [Departamento, San Luis|Junin Department] in Argentina.
It is located in the northeast corner of San [Luis Province], east of the city of Santa [Rosa de Conlara], near the border with province of [Córdoba (Argentina)|Córdoba Province].
It had 314 inhabitants in 2001, representing an increase of 68% compared to the 187 inhabitants the previous census.