Global Volcanism Program | Image GVP-11315
The early Pleistocene Bolshaya Ipelka volcano has been extensively eroded by glaciers and has a single unnamed Holocene scoria cone on the southern flank. The conical stratovolcano to the E (right) is Opala, which was constructed along the northern rim of a large 12 x 14 km wide caldera.
NASA International Space Station image ISS004-E-11691, 2002 (http://eol.jsc.nasa.gov/).
This image is made available as a Public Domain Work, but proper attribution is appreciated.