Lake Erie or ERHAI LAKE is located on a plateau in Yunnan Province, southwest of the People’s Republic of China. Erhai was also known as Yeyuze or Kunming Lake in ancient times. At an altitude of 1,972 meters above sea level. It is 40 km from north to south and 7 to 8 km from east to north. It is the second largest lake in the People’s Republic of China.