| O'a Caldera | |
|---|---|
 | |
| Highest point | |
| Elevation | 2,075 m (6,808 ft) |
| Coordinates | 7°28′0″N 38°35′0″E / 7.46667°N 38.58333°E |
| Geography | |
  O'a Caldera Location within Ethiopia | |
| Location | Ethiopia |
| Geology | |
| Rock age | Holocene |
| Caldera | |
| Last eruption | Unknown, ongoing fumarolic activity. |
The O'a Caldera, also known as Shala, is a volcanic caldera in Ethiopia. It has two lakes: Lake Shala and a small maar called Lake Chitu. Sub-features include Mount Fike (a pyroclastic cone) and Mount Billa (a cinder cone).
