Island, Lesser Sunda Islands , Indonesia.
Its irregular coastline includes Bima Bay, one of the best harbours in Indonesia. The island, 175 mi (282 km) long and 55 mi (88 km) wide, is mountainous. Its highest point is volcanic Mount Tambora (9,354 ft [2,851 m]), which erupted in 1815, killing 50,000 people. Sumbawa was once part of the Majapahit empire . In 1674 the Sumbawanese nobility signed agreements that gave the Dutch East India Company some power over the island; the Dutch gained direct control in the early 20th century. Sumbawa became part of independent Indonesia in 1950. Agricultural products include rice, corn, coffee, and copra.