| Congo Volcano | |
| Elevation M: | 2014 |
| Map: | Costa Rica |
| Label Position: | right |
| Listing: | List of volcanoes in Costa Rica |
| Location: | Costa Rica |
| Range: | Cordillera Central |
| Coordinates: | 10.25°N -84.2333°W |
| Type: | Stratovolcano |
| Last Eruption: | ~11,000 years ago |
The Congo Volcano, in Spanish the Spanish; Castilian: Volcán Congo and also known as Congo Mountain, Spanish; Castilian: Cerro Congo, is an inactive volcano in Costa Rica, situated in the Cordillera Central range near the Poás Volcano and within the Poás Volcano National Park. It is often confused with Platanar Volcano, which often receives the alternative and incorrect name of Spanish; Castilian: '''Cerro Congo'''.[1]
The name comes from the mantled howler monkey, locally known as Congo monkey, as it is common to find it in the region and its howling can be heard at great distances. The name was in use by the 19th century.
The Congo volcano is a stratovolcano, with an area of 25 km2, 6 km north of Poás Volcano. The crater is open on its north side, and it is very eroded due to rain, which in turn provides the source for María Aguilar river and its valley.