Hellfire Pass was the name the Prisoner of war(POWs) gave to the largest of a 1,000 meter series of mountain cuttings through soil and solid rock, which were accomplished with minimal equipment(3.5 Kg. hammers, picks, shovels, steel tap drills, Can baskets for removing dirt and rock, and dynamite for blasting). The prisoners called it “Hellfire Pass” because of the way the largest cutting at Konyu looked at night by torchlight. In 1988, The Australian-Thai of commerce completed the first phase of Hellfire Pass Memorial project. The purpose is to honor the allied POWs and Asian laborers who died while constructing death railway.