|Elevation||2,075 m (6,808 ft)|
|Age of rock||Holocene|
|Last eruption||Unknown, ongoing fumarolic activity.|
The O'a Caldera, also known as Shala, is a volcanic caldera in Ethiopia. It has three lakes: Lake Shala, Lake Abijatta, and a small volcanic Maar called Lake Chitu. Sub-features include Mount Fike (a pyroclastic cone) and Mount Billa (a cinder cone).
- "Global volcanism program". Retrieved 9 October 2011.
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