Cerro Columa

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The Cerro Colluma (also: Cerro Columa ) is a maar in the department of Oruro in the South American Andes State of Bolivia.

The crater of Colluma has a diameter of three to four kilometers and rises about one hundred meters from the surrounding plain of the Altiplano. Because of the low precipitation in the region of the crater of Colluma is not filled with water, just north of the mountain rim lies the Laguna Seca, a lake of 600 meters length and 200 meters width.

The Cerro Colluma is located in the district ( bolivian: Municipio Corque ) in the Province Carangas, midway between the towns of Huachacalla and Turco. The period of development of the Cerro Colluma is unknown, estimates suggest the Holocene.