 The length of the river is , of which is in Russia; the drainage basin covers .The major tributaries of the river are the Granitnaya (99 km), the Borisovka (86 km) and the Komarovka (76 km, main tributary Rakovka).The city Ussuriysk was founded in 1866 at the confluence of the Suifen and Komarovka rivers.