The Lawa River is a river in East Kalimantan province, Borneo island, Indonesia, about northwest of Balikpapan. It is a branch of the Mahakam River in eastern Borneo, which is situated entirely within the Kutai Barat, and flows into the Mahakam approximately upstream from Samarinda. The indigenous communities of Lotaq and Mejaun (The Dayaks) are situated near its source. Geography The river flows in the eastern area of Borneo with predominantly tropical rainforest climate (designated as Af in the Köppen-Geiger climate classification). The annual average temperature in the area is . The warmest month is October, when the average temperature is around , and the coldest is February, at . The average annual rainfall is . The wettest month is November, with an average of rainfall, and the driest is August, with a rainfall. See also List of rivers of Indonesia List of rivers of Kalimantan References West Kutai Regency Rivers of East Kalimantan Rivers of Indonesia