# Gedamsa Caldera

- **Country:** Ethiopia
- **Coordinates:** 8.350000, 39.180000
- **Type:** Caldera
- **Location:** Ethiopian Rift Valley
- **Map Size:** 225
- **Map Relief:** 1
- **Elevation M:** 1984
- **Last Eruption:** Holocene
- **Label Position:** right

The Gedamsa Caldera is a 7 x 9 km caldera in the Main Ethiopian Rift valley. The caldera has steep sides with high walls, the upper parts of which consist predominantly of rhyolitic lava flows deposited in a series of trachite ignimbrite eruptions. There are small basaltic spatter cones and fumarolic activity inside the caldera floor along with a series of (Late Pleistocene to Holocene) rhyolite and pumice deposits and a Holocene lava dome/flow.

![Photo of Gedamsa Caldera](https://upload.wikimedia.org/wikipedia/commons/f/f7/Gedamsa_caldera.jpg)

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