etna, in sicilian muncibbe, is a complex stratovolcano of sicily that originated in the quaternary,

wall rock terrain reflection tree mountain landscape geology screenshot sky sea morning wood soil coast art ruins cloud nature sapienza crest silvestri craters scenic stones valley unesco rifugio canyon extreme landmark peak vapour trekking adventure eruption smoke hiking hill volcanic travel sicily crater italy europe volcano sicilian lava tourism catania panorama view beautiful etna sicilia environment outdoor volcanoes mount green famous black sand park national muncibbe complex stratovolcano that originated quaternary highest active eurasian plate