Its straight course south of Katha is interrupted at Kabwet by an intrusive lava formation.  
It once flowed due south to the Gulf of Martaban in the present course of the Sittang river; its current westward turn and meandering through the oil fields of Yenangyaung are comparatively recent. Its straight course south of Katha is interrupted at Kabwet by an intrusive lava formation.  Bhamo and Myitkyina, twin goals of General Stillwell's 1944 offensive, are the northernmost ports on this river formed by the confluence of the Nmai and Mali.  It joins with the Chindwin River and turns south to flow through the Pegu and Arakan mountains before fanning out into a delta, which includes the Bassein river, and emptying into the Andaman Sea.  FTP, the Sanskrit for "elephant river" describes this body of water that flows through Mandalay and Rangoon, the chief river of Burma.
It once flowed due south to the Gulf of Martaban in the present course of the Sittang river; its current westward turn and meandering through the oil fields of Yenangyaung are comparatively recent.
Irrawaddy River (also accept: Ayeyarwady)