English: Aringay Centennial Tunnel, is one of the great landmarks of La Union. It was constructed for trains of the Philippine National Railways (PNR) bound for Baguio City. The tunnel was later abandoned by the Commonwealth Government because of the Second World War.
According to the locals, La Union Centennial Tunnel already existed during the Spanish era and it was only during the American occupation when it was developed and fortified. During the Japanese occupation, the tunnel was used as headquarters of the Japanese Imperial Army because of its durability against US bombings. There were rising speculations that hidden treasures were buried in the area during the occupation.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
Situated in Poblacion, Aringay, La Union, this 500 meter tunnel, 7.6 meters wide, and with a depth of 4.5 meters, was made in 1913 during the American regime.