Laruma River is a watercourse on Bougainville in the Solomon Islands of the Pacific Ocean. [1] Located on the west coast of the island at the edge of the Keriaka Limestone Plateau, the Laruma drains into the Solomon Sea. [2] The mouth of the river lies north of village of Laruma (population 141 in 1972)[ citation needed ] and south of Turupei. [2] The Laruma River marks the boundary between Bannoni language-speaking people to the south and Pivu language-speaking people to the north.[ citation needed ] Circa 2001, the Laruma River valley had a population density of 14 people per km2. [3]
6°11′54″S154°58′31″E / 6.19844°S 154.97538°E