Panoramic view of volcanic gases emanating from a ~10 m diameter fumarolic vent located on the flank of Kiska Volcano, Western Aleutians, Alaska. Note the yellow sulfur deposits that coat the ground surrounding the vent. Photo taken September 10, 2015 during the NSF GeoPRISMS – Alaska Volcano Observatory – Deep Carbon Observatory collaborative 2015 Western Aleutians Field Campaign. Photo credit: Taryn Lopez (University of Alaska, Fairbanks)