Urun-Dush volcano (center) is one of 10 lava and cinder cones of the Khanuy Gol (Hanuy Gol) volcanic field in west-central Mongolia about 150 km WNW of the capital city of Ulaanbaatar. The volcanic field covers a broad area along the Khanuy River and in other drainages to the east. The area is also known as the Chanuj Gol or Bulgan volcanic field. The cones range from about 30 to 190 m in height and were considered to be of late-Pleistocene to Holocene age, although no precise radiometric ages are available. Photo by Alexei Ivanov (Russian Academy of Sciences, Irkutsk).