Guazapa volcano an eroded basaltic stratovolcano 23 km NE of San Salvador city.

It shows signs of intense erosion that have cut deep valleys into its flanks, suggesting a very long dormancy period, and there is no crater morphology left.

During the civil war of the 1980s, Guazapa was one of the main strongholds of the FMLN guerillas.

[citation needed] The Guazapa mountains have clandestine cemeteries, bomb shelters, guerilla camps, and makeshift hospitals.

[citation needed] This El Salvador location article is a stub.