Dafengfeng Volcano Neck Introduction
The eastern part of Taiwan and the volcanic areas of the outlying islands are the northern extension of the Luzon volcanic island arc. The volcanic activities along the eastern coast create a diverse range of landscapes, including various igneous rock formations on Green Island and Orchid Island, as well as the andesite columns at Wushi Harbor, all of which are extremely valuable geological educational materials. The Dapingding volcanic neck is a volcanic landform on the eastern coast that holds significant research value, located on the eastern coast of Zhangyuan Village, between Hualien County and Taitung County, currently managed by Taitung County. Closer to the land, there are two major rock formations standing upright: one is a conglomerate rock, and the other is basalt with fan-shaped columnar joints, locally known as "Dajian Stone," which is a typical volcanic neck with columnar joint structure. Near the coastline, there is a small scale wave-cut platform formed by the long-term erosion of the igneous rock by seawater. The Dapingding volcanic neck structure is very complete, with unique pleated skirt-like tower columnar joints, similar to those on Yuanbei Island in Penghu, forming a distinct landscape created by volcanic activity.
