Cerro Petaca is a large forested ridge in Amazonas state, Venezuela. It lies just west of the two high plateaus of Cerro Marahuaca and northeast of the massive Cerro Duida. The ridge reaches a height of at least above sea level. Part of the DuidaâÂÂMarahuaca Massif, it is entirely within the bounds of DuidaâÂÂMarahuaca National Park.