Khangar volcano, also spelled Hangar, is the southernmost volcano of the N-S-trending Sredinny Range, which stretches across western Kamchatka. Khangar, which is the dominant feature within a larger volcano-tectonic depression, is composed of two parts--a stratovolcano with a dramatic 2.8-km-wide summit crater and a large lava dome on its eastern flank. The crater, now partially filled by a lake, was formed about 7000 years ago during the largest-known Holocene eruption in the Sredinny Range. Photo by Dan Miller, 1990 (U.S. Geological Survey).