Hallasan National Park (9.6 km), Seokgulam Trail (1.5 km), Gwaneumsa Trail (8.7 km), Donnaeko Trail (7 km), and Eoseungsaengak Trail (1.3 km). The longest trail is Seongpanak Trail which takes about 4.5 hours. Hallasan comprises 153.112 km of the Jeju Island. It rises 1.950 m above the sea level which means the highest mountain in South Korea. This mountain was formed in the fourth Cenozoic era by outburst of volcano. It is mostly composed of basalts. It is extending east and west, and it has high and gradual descent. On the other hand, the south part of the mountain is steep. In the
Sincholagua Volcano international subsidiary Sipetrol. Accompanying Estensoro was the controversial economist , who worked as viceminister of economy and finances during the government of Isabel Perón in 1975, and is considered the architect of the radical adjustment program known as the "Rodrigazo", which contributed to erode the political and social stability of Argentina in the lead-up to the 1976 coup d'etat that installed the military dictatorship known as the National Reorganization Process (to which Zinn also contributed). Sincholagua Volcano Sincholagua is an inactive volcano located in Ecuador northeast of Cotopaxi Volcano and southeast of Quito. It is the 12th highest peak in