Labels:text | map | font OCR: The Great Rift Zone Arco Middle Butte Craters of the Moon East Lava Field Big Butte Split Southern Butte Butte Great King's Rift Bowl Pocatello Zone Wapi Lava Field Big Southern Butte craters Middle Butte of the Moon East Butte Split Butto' King's Great Rift Bowl N Zone Wapi Lava Field 30