Cả River

( Called Vietnamese Sông Ca, Ca or Sông also Ngan Lam ) The Ca is a 513 km long river in Southeast Asia. It rises in the mountains in northern Laos - Loi and flows through the north of Vietnam, the province of Nghe An, before it joins near the city of Vinh in the South China Sea. The valley of the Ca is regarded as one of the cradles of Vietnamese culture and has been inhabited since the Paleolithic Age.