Main Crater

Main Crater (77°32′S 167°10′E) is the topographic feature that rises to about 3,750 metres (12,300 ft) and forms the primary summit crater of Mount Erebus on Ross Island, Antarctica. Inner Crater, which lies within Main Crater, contains an anorthoclase–phonolite lava lake.

References

 This article incorporates public domain material from "Main Crater". Geographic Names Information System. United States Geological Survey.