"Volcán Chingo is a symmetrical stratovolcano that straddles the Guatemala/El Salvador border. The 1775-m-high conical volcano rises 900 m above its surroundings and is the most prominent regional landmark. A shallow, oval-shaped summit crater is breached on the western side. No historical eruptions are known from the Volcán Chingo volcanic field. Other small stratovolcanoes and cinder cones are located on both sides of the volcano along a major N-S-trending fault. Other youthful cones, such as Cerro de Olla, lie across the Salvadorian border to the south. To the north in Guatemala, Volcán las Viboras, a cinder cone that caps a basaltic shield volcano, is the most prominent of several fault-controlled cones near Laguna Atescatempo. Flank fissures have fed many youthful lava flows, particularly on the western flank of Chingo and the northern flank of Volcán las Viboras."  -Smithsonian Volcano Archive
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