Petacas, Lava dome in Cauca and Nariño Departments, Colombia

Petacas is a lava dome, not a stratovolcano, standing 4,054 metres high in the Central Cordillera of the Colombian Andes, on the border of Cauca and Nariño departments. It lies northeast of Doña Juana volcano, and young-looking ash cones sit on its slopes. The age of its last eruption is unknown.

Petacas is a lava dome, not a stratovolcano, and the age of its last eruption is unknown; the sources record no date for it. Its slopes carry several young-looking ash cones, and it lies northeast of Doña Juana volcano, between the El Tablón Fault to the west and the San Jerónimo Fault to the east.

The name Petacas refers to leather bags or saddlebags, a shape the dome's profile is said to resemble. The volcano lies on the boundary between Cauca and Nariño departments, and its slopes hold several young-looking ash cones. No traditions or uses are recorded in the sources.

Petacas lies on the Cauca–Nariño border, northeast of Doña Juana volcano, between the El Tablón Fault to the west and the San Jerónimo Fault to the east. Access is overland from the Andean highlands; the summit dome reaches 4,054 m, so allow for altitude. Ash cones on the slopes show recent-looking activity, though the date of the last eruption is unknown.

Petacas is a lava dome, not a stratovolcano, and its last eruption is undated. It sits northeast of Doña Juana volcano, with Las Animas nearby, between the El Tablón Fault to the west and the San Jerónimo Fault to the east. Young-looking ash cones dot its slopes.