Ilopango

Lake Ilopango is a crater lake which fills a scenic 8×11 km (72 km or 28 sq mi) volcanic caldera in central El Salvador, on the borders of the San Salvador, La Paz, and Cuscatlán departments.^[1] The caldera, which contains the second largest lake in the country and is located immediately east of the capital city, San Salvador, has a scalloped 100 m (330 ft) to 500 m (1,600 ft) high rim.^[2]

• http://en.wikipedia.org/wiki/Ilopango