section_path: Geography
section_name: Geography
paragraph_text: Geography
  
  The land controlled by the ROC consists of 168 islands with a combined area of 36,193 square kilometres (13,974 sq mi). The main island, known historically as Formosa, makes up 99 percent of this area, measuring 35,808 square kilometres (13,826 sq mi) and lying some 180 kilometres (112 mi) across the Taiwan Strait from the southeastern coast of mainland China. The East China Sea lies to its north, the Philippine Sea to its east, the Luzon Strait directly to its south and the South China Sea to its southwest. Smaller islands include the Penghu Islands in the Taiwan Strait, the Kinmen, Matsu and Wuqiu islands near the Chinese coast, and some of the South China Sea islands.
  
  The main island is a tilted fault block, characterized by the contrast between the eastern two-thirds, consisting mostly of five rugged mountain ranges parallel to the east coast, and the flat to gently rolling plains of the western third, where the majority of Taiwan's population reside. There are several peaks over 3,500 metres, the highest being Yu Shan at 3,952 m (12,966 ft), making Taiwan the world's fourth-highest island. The tectonic boundary that formed these ranges is still active, and the island experiences many earthquakes. There are also many active submarine volcanoes in the Taiwan Strait.
  
  Taiwan contains four terrestrial ecoregions: Jian Nan subtropical evergreen forests, South China Sea Islands, South Taiwan monsoon rain forests, and Taiwan subtropical evergreen forests. The eastern mountains are heavily forested and home to a diverse range of wildlife, while land use in the western and northern lowlands is intensive. The country had a 2019 Forest Landscape Integrity Index mean score of 6.38/10, ranking it 76th globally out of 172 countries.