Huadong Hai-an Coastal Range
The Hai-an Range, also known as the Coastal Range, is a mountain range lies on the east seashore of Taiwan and crossed the border of counties of Hualien and Taitung. Distinct from western lands of Taiwan, it is a part of Philippine Mobile Belt instead of the Yangtze Plate.
The Huatung Valley, a part of the collision of two tectonic plates, is on the west of the range. The tallest peak of Haian Range is Xingangshan (新港山), which has a height of 1,682 m (5,518 ft).
There are several small basins located around the range, the largest is Taiyuan Basin.