Global Volcanism Program | Image GVP-11466
Tromen (center) is a 3978-m-high youthful Argentinian stratovolcano that lies at the northern end of an elongated volcanic massif. The summit of Tromen is cut by two overlapping 3.5-km-wide calderas, visible south of the snow-dappled summit cone in this NASA Landsat view (with north to the top). The youngest lava flows at Tromen originated from north-flanks vents and produced the dark-colored lava flows that blanket the north and NE sides of the andesitic-to-dacitic volcano.
NASA Landsat 7 image (worldwind.arc.nasa.gov)