Stock photography, photos: volcanic crater Mt. Etna Stock photos of A volcanic crater near the top of Sicily's Mt. Etna Photograph: © Brian Heston Click for a larger image and more information Keywords associated with this stock photo: Siciliy, Italy, Etna, volcano, active,mount, venting, volcanic, europe,european, italian , mountain, steam, europe,european,eu, sunny, clouds ,volcanic, crater , rock, pumice, igneous rock, unstable