the mine, Sumbawa Barat Regency along with other remote mining towns, and Jakarta, have the highest GDP per capita rates in Indonesia, Sumbawa Barat's is 156.25 million rupiah (US$17,170) , Newmont and its partners have invested about $1.9 billion in the mine. The reserves are expected to last until 2034, making Batu Hijau one of the largest copper mines in the world. Transport There is a road network in Sumbawa, but it is poorly maintained and has long portions of rough gravel. Frequent ferry service to Sumbawa (Poto Tano) from Lombok (Labuhan Lombok) exists; however, the ferry service to Flores from Sape is infrequent. Bima is the largest city on Sumbawa and has ferry and bus services directly to Java and Bali, though service breakdowns are common. The most convenient way to reach Sumbawa is via air. There are commercial flights connecting the island's main airport, the Bima airport, to Denpasar and Makassar. References External links Sumbawa Tourist Attraction West Nusa Tenggara Hägerdal, Hans (2017), Held's History of Sumbawa. Amsterdam: Amsterdam University Press. Lesser Sunda Islands Landforms of West Nusa Tenggara Islands of Indonesia