Bulolo is a town in the Morobe Province of Papua New Guinea. It was once an important gold dredging centre in the former Territory of New Guinea, situated on the Bulolo River, a tributary of the Markham River, about 32 km (20 mi) north-west of Wau. The town is served by Bulolo Airport. Built in June 1930, the Bulolo strip was originally 1,150 yards by 120 yards. In 2010 it had an estimated population of 20,000.