Jeju uprising to Jeju from Busan and deploying police companies, each 1,700 strong, from the southern provinces of the mainland. The guerrillas retreated to their bases in the forests and caves around Hallasan, an extinct volcano and the highest mountain in South Korea. On April 29, the Korean, non-military, governor of Jeju province abandoned his post, defected, and joined the guerrillas. This caused many police officers, disillusioned by the atrocities they were ordered to commit against their own, to do the same. In response, U.S. military provincial governor William F. Dean ordered a purge of SKLP sympathizers from the ranks of the
Santa Margarida Volcano Santa Margarida Volcano The Santa Margarida Volcano () is an extinct volcano in the comarca of Garrotxa, Catalonia, Spain. The volcano has a perimeter of 2 kilometers and a height of 682 meters and is part of the Garrotxa Volcanic Zone Natural Park. The hermitage of Santa Margarida, after which the volcano was named, is inside the crater of the volcano. The building was destroyed in 1428 during the 1428 Catalonia earthquake and rebuilt in 1865. A study published in 2011 at the Journal of Volcanology and Geothermal Research indicated that the Santa Margarida and Croscat volcanoes were the product