The Chenggong Coastal Defense Tunnel () is a

tunnel A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube cons ...

in Jinhu,

Kinmen County Kinmen, alternatively known as Quemoy, is a group of islands governed as a county by the Republic of China (Taiwan), off the southeastern coast of mainland China. It lies roughly east of the city of Xiamen in Fujian, from which it is separate ...

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...

Geology

The tunnel was dug through

granite Granite () is a coarse-grained (phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies undergro ...

layers of rock and concrete.

Architecture

The tunnel is equipped with various military equipment, including command post,

pillbox Pillbox may refer to: * Pill organizer, a container for medicine * Pillbox hat, a woman's hat with a flat crown, straight upright sides, and no brim * Pillbox (military), concrete dug-in guard posts * Pillbox affair The Pillbox affair, also known ...

, barracks, toilets and kitchen. It spans over a length of 560 meters. It is divided into section, which are the section towards the sea and section leads to the village office.

References

Jinhu Township Military history of Taiwan Tunnels in Kinmen County Tunnel warfare {{Taiwan-struct-stub

Geology

Architecture

See also

References