The Coastal Mountain Range, also known as the Hai'an Range (), is a

mountain range A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have ari ...

situated on the eastern coast of the

island of Taiwan Taiwan, officially the Republic of China (ROC), is an island country located in East Asia. The main island of Taiwan, formerly known in the Western political circles, press and literature as Formosa, makes up 99% of the land area of the territor ...

, and spans the border between Hualien and Taitung Counties. The Coastal Mountain Range is the northern portion of the Luzon Arc but do not present current volcanic activity. Its geology is mainly composed of a Miocene volcanic basement covered by a thick (ca.4-6km) sedimentary pile of deep to shallow marine clastic deposits mostly derived from the adjacent Central Range mountains to the west. The

Huadong Valley The Huadong Valley or Hualien–Taitung Valley (), also known as East Rift Valley or the Longitudinal Valley, is a long and narrow valley located between the Central Mountain Range and the Coastal Mountain Range. It is also recognized as a plai ...

, the result of the collision of two

tectonic plate Plate tectonics (from the la, label=Late Latin, tectonicus, from the grc, τεκτονικός, lit=pertaining to building) is the generally accepted scientific theory that considers the Earth's lithosphere to comprise a number of large te ...

s, is at the west end of the range, and the tallest peak of the range is Xingangshan (新港山), which stands tall. Currently those peaks are still rising with an annual speed of 3 mm. The Hai'an Range is also converging with

Central Mountain Range The Central Mountain Range is the principal mountain range on the island of Taiwan. It runs from the north of the island to the south. Due to this separation, connecting between the west and east is not very convenient. The tallest peak of th ...

with an average speed of 2.3 cm per year. There are several small basins located around the range, the largest of which is Taiyuan Basin.

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Image:Taiwan 2009 HuaLien Rice Paddy at Foot of Mountain FRD 6130 Book Back Cover.jpg Image:Taiwan 2009 HuaLien Farm Road FRD 6150.jpg Image:Taiwan 2009 HuaLien Farmers Residence by Field and Mountain FRD 6158.jpg Image:Taiwan 2009 East Coast Mountain Range FRD 6296 Pano Extracted.jpg Image:Taiwan 2009 East Coast Mountain Range FRD 6317.jpg

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See also