Mutsu Province The Meiji Mutsu Province was a region in the northernmost part of the main island that corresponds to today's Aomori Prefecture. At the same time, while the characters of the name were unchanged, the official reading was changed to the "on'yomi" version "Rikuō". Mutsu Province Mutsu Province is also known as or . The term is often used to refer to the combined area of Mutsu and the neighboring province Dewa which make up the Tōhoku region. Mutsu, on northern Honshū, was one of the last provinces to be formed as land was taken from the indigenous Emishi and became
Bougainville Island Bougainville Island Bougainville Island is the main island of the Autonomous Region of Bougainville of Papua New Guinea. This region is also known as Bougainville Province or the North Solomons. Its land area is 9,300 km (3591 sq miles). The population of the province is 234,280 (2011 census), which includes the adjacent island of Buka and assorted outlying islands including the Carterets. Mount Balbi at 2,700 m is the highest point. Bougainville Island is the largest of the Solomon Islands archipelago, forming part of the Northern Solomon Islands, which is politically separate from the sovereign country also called Solomon Islands.