# O'a Caldera

- **Country:** Ethiopia
- **Coordinates:** 7.466667, 38.583333
- **Age:** Holocene
- **Type:** Caldera
- **Location:** Ethiopia
- **Map Size:** 225
- **Map Relief:** 1
- **Elevation M:** 2075
- **Last Eruption:** Unknown, ongoing fumarolic activity.
- **Label Position:** right

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).

![Photo of O'a Caldera](https://upload.wikimedia.org/wikipedia/commons/3/3b/O%27a_caldera.jpg)

**Source:** https://en.wikipedia.org/wiki/O'a_Caldera (Wikipedia, CC BY-SA)