Steam rises from Santiaguito — The area of the flank destroyed by the 1902 eruption can be clearly seen. Lahar deposits snake down river valleys to the left of the image
Photo Credit: By NASA - http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=7762, Public Domain, https://commons.wikimedia.org/w/index.php?curid=3382934