The Backbone of Taiwan: How a Massive Mountain Barrier Shapes an Entire Island

Countries & Cities · Published 30 September 2026 · Updated 25 October 2026 Swipe more like this →

In short: Running north to south, the Central Mountain Range serves as the primary spine of Taiwan. This formidable barrier separates the island's east and west coasts, historically complicating transit. Beyond its geographic dominance, the range hosts a complex vertical ecosystem that shifts from subtropical forests to high-altitude subalpine conifer zones.

The Central Mountain Range, known in Chinese as Zhōngyāng Shānmài or Shānmò, acts as a definitive geographical divider on Taiwan Island. During the Qing dynasty, the range was referred to as Ta-shan, or 'Big Mountains,' reflecting its imposing stature. While the range itself features Mount Xiuguluan as its tallest peak at 3,860 meters, a broader definition of the system includes the conjoint Yushan and Xueshan ranges. Under this wider classification, Yushan, also known as Jade Mountain or Mount Morrison, stands as the highest point at 3,952 meters, followed by Xueshan at 3,886 meters.

The ecology of the range is defined by dramatic elevation-based transitions. At lower levels, the landscape is dominated by evergreen laurel-Castanopsis forests, featuring species such as Cryptocarya chinensis and Castanopsis hystrix, alongside stands of Pinus massoniana. As the terrain rises, these evergreen broadleaf trees yield to a mix of deciduous broadleaf species and conifers. At intermediate elevations, Cyclobalanopsis glauca becomes the dominant tree, replacing the laurel and Castanopsis varieties found in the lowlands.

Above the 3,000-meter mark, the environment shifts into a distinct high-altitude zone. Deciduous broadleaf trees, including Formosan alder and various maple species, intermingle with Taiwan hemlock. At the highest reaches, the ecosystem transitions into subalpine forests. These peaks are dominated by hardy conifers, specifically Taiwan hemlock, Taiwan spruce, and Taiwan fir. This vertical stratification highlights the range's role as a vital biodiversity hub within the Taiwan subtropical evergreen forests ecoregion, providing a unique environment that persists despite the island's subtropical climate.

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