临夏县
The county's river network is formed primarily by small rivers that flow to the northeast and north from the mountains that line the county's southwestern border toward the Yellow River (i.e., these days, the Liujiaxia Reservoir) near the northern end of the county. The largest of these rivers is the Daxia River (), which flows from the Gannan Tibetan Autonomous Prefecture to cross Linxia County. The river's lower course forms the border between Linxia County and the neighboring Dongxiang Autonomous County to the east. It forms a large bay at its outfall into the Liujiaxia Reservoir.