located in the northwestern coast of the island of Borneo. It covers a
land area of 5,765 kilometers. Its nearest neighbor is Sarawak, the eastern
state of Malaysia. The districts of Brunei-Muara, Tutong and Belait make
up the larger western portion and are dominated by hilly lowlands, swampy
plains and valleys. The eastern district of Temburong is more mountainous
and has a land area of 1,288 sq. kilometers.
4 main rivers that channel into the 4 districts of Temburong, Belait,
Tutong and Brunei. The smallest river of all is the Temburong. It drains
nearly the whole district.
main rivers are the Belait and Tutong. The Belait basin is the largest
with a total area of 2,700 sq. kilometers. The Tutong basin is about 1,300