And they found it by chance, apparently. "SYDNEY, AUSTRALIA—According to a report in The Herald Sun, a team of Australian researchers is exploring an obscure road built by the Japanese army during World War II in Papua New Guinea. Archaeologist Matthew Kelly of Extent Heritage and his colleagues were investigating the battlefield of Etoa, which is located along the Kokoda Track—a 30-mile-long footpath across rugged mountain terrain from Owers Corner in Central Province to the village of Kokoda—when they found the hidden supply road. It ran parallel to the Kokoda Track, but was wider and could have been used by the Japanese army to move supplies on horseback while the Australians and Japanese fought along the Kokoda Track from July to November, 1942." World War II-Era Secret Road Found in Papua New Guinea - Archaeology Magazine
