Dafeng Volcano Neck Introduction
The eastern part of Taiwan and the islands are the northern extension of the Luzon volcanic arc. The volcanic activity along the eastern coast has resulted in a variety of landscapes, including various igneous rock formations in Green Island and Orchid Island, as well as the andesite columnar joints of Wushi Harbor, which serve as invaluable geological educational resources. The Dafengfeng volcanic neck is a highly valuable site for research on the volcanic landscape along the eastern coast, located on the eastern coastline of Changyuan Village, between Hualien County and Taitung County, and is currently managed by Taitung County. In the area closer to the mainland, there are two prominent rock formations: one is a blocky rock, and the other is basalt with fan-shaped columnar joints, locally known as "Dajianshi," which is a hill with a typical volcanic neck columnar joint structure. Near the coastline, there is a smaller marine erosion platform formed by the long-term scouring of the igneous rock by seawater. The structure of the Dafengfeng volcanic neck is very complete, featuring unique pleated skirt-like tower columnar joints, similar to those in Yuanbeidiao, Penghu, showcasing the distinctive landscape created by volcanic activity.
